301. once more: He asked her to sing the song once more before they left.

302. once upon a time: Once upon a time, in a faraway kingdom, there lived a brave knight.

303. one after another: The students lined up to receive their diplomas, one after another.

304. one another: The siblings hugged one another tightly after being apart for so long.

305. operate on sb.: The skilled surgeon will operate on the patient tomorrow morning.

306. out of: She burst out of the room, angry and frustrated.

307. out of work: After the company downsized, many employees were out of work.

308. out of date: The information in that book is out of date; we need to find a more current source.

309. over and over: She repeated the instructions over and over until everyone understood.

310. over there: Look, your keys are over there, on the table.

311. of one's own: She finally bought a house of her own after years of saving.

312. on business: He travels frequently on business to meet with clients.

313. on duty: The security guard was on duty all night, patrolling the premises.

314. on foot: We explored the old town on foot, taking in the sights and sounds.

315. on holiday: They decided to go to the beach on holiday to relax and unwind.

316. on one's side: I'm on your side; you can count on me for support.

317. on show: The artist's paintings are currently on show at the gallery downtown.

318. on the other hand: He enjoys sports; on the other hand, his sister prefers reading.

319. on the phone: Sorry, I can't talk right now; I'm on the phone with my boss.

320. on the right: The store you're looking for is on the right side of the street.

321. on the/one's way (to): We're on our way to the airport to catch our flight.

322. on time: The train arrived on time, much to the relief of the commuters.

323. on weekdays: She works out at the gym on weekdays and takes weekends off.

324. once a day: The doctor prescribed taking the medication once a day with food.

325. once again: Once again, she found herself lost in the maze of the old city.

326. once every four years: The World Cup is held once every four years, attracting millions of fans worldwide.

327. once more: Could you please repeat that once more? I didn't quite catch it.

328. once upon a time: Once upon a time, there was a beautiful princess trapped in a tower.

329. one after another: The cars lined up at the toll booth, paying one after another.

330. one another: They smiled warmly at one another as they reminisced about old times.

331. operate on sb.: The renowned surgeon will operate on the injured athlete tomorrow morning.

332. out of: He stumbled out of bed, still half asleep.

333. out of work: After the factory closed down, many workers were left out of work.

334. out of date: The milk in the fridge is out of date; we need to throw it away.

335. over and over: She practiced her lines over and over until she could recite them perfectly.

336. over there: Look, the bookstore is over there, across the street.

337. pass by: We often pass by that quaint little café on our way to work.

338. pay for: He forgot to pay for his groceries at the store yesterday.

339. pick out: Can you help me pick out a birthday present for my sister?

340. pick up: She bent down to pick up the fallen book from the floor.

341. play a trick on: The children decided to play a trick on their teacher for April Fools' Day.

342. play with: The kitten loves to play with its favorite toy mouse.

343. plenty of: There are plenty of books on the shelf for you to choose from.

344. point at: The child excitedly pointed at the rainbow in the sky.

345. point out: She was quick to point out the grammatical errors in his essay.

346. praise sb. for sth.: The teacher praised him for his hard work and dedication to the project.

347. prefer…to: I prefer tea to coffee in the mornings.

348. prepare for: She spent weeks preparing for the upcoming exam.

349. protect…from: Sunscreen helps protect your skin from harmful UV rays.

350. prevent …from…: Vaccinations help prevent children from getting certain diseases.

351. pull down: The city council decided to pull down the old bridge and build a new one.

352. put down: She quickly put down the important information in her notebook.

353. put off: They had to put off the picnic due to the rainy weather forecast.

354. put on: He put on his favorite jacket before heading out into the cold.

355. put out: The firefighters worked tirelessly to put out the raging fire.

356. put up: They put up a sign to welcome guests to the party.

357. rely on: I rely on my alarm clock to wake me up in the morning.

358. right now: We need to leave for the airport right now to catch our flight.

359. ring up: She rang up the customer's purchases at the checkout counter.

360. run after: The children giggled as they ran after the ice cream truck.

361. run away: The dog got scared and tried to run away from the thunderstorm.

362. run out of: We've run out of milk; I'll need to buy some more from the store.

363. save one's life: The lifeguard's quick action helped save the swimmer's life.

364. search for: They decided to search for buried treasure in the old ruins.

365. see…off: We gathered at the train station to see off our friend who was leaving for college.

366. sell out: The popular concert sold out within hours of tickets going on sale.

367. send for:They had to send for the plumber to fix the leaky faucet.

368. separate … from: Please separate the recyclables from the regular trash.

369. set free: The activists worked tirelessly to set free the captive animals from the zoo.

370. set off: The alarm clock set off a loud ringing sound, waking everyone up.

371. set out: They set out on their journey early in the morning to avoid traffic.

372. show off: He couldn't resist showing off his new sports car to his friends.

373. so far: So far, the project is progressing according to plan.

374. so…that: He was so tired that he fell asleep as soon as his head hit the pillow.

375. sooner or later: Sooner or later, you'll have to face the consequences of your actions.

376. speed up: We need to speed up production to meet the deadline.

377. spend …on: She spends a lot of money on clothes every month.

378. stand for: The abbreviation "USA" stands for the United States of America.

379. stop doing sth.: He decided to stop smoking for the sake of his health.

380. stop to do sth.: We stopped to admire the beautiful sunset on the beach.

381. such as: I enjoy outdoor activities such as hiking and camping.

382. take away: The waiter came to take away our empty plates after dinner.

383. take it easy: Relax and take it easy; there's no need to stress over it.

384. take off: The plane will take off in ten minutes, so please fasten your seatbelt.

385. take one’s time: There's no rush; take your time to make a decision.

386. take out: She took out her phone to show us the pictures she had taken.

387. take place: The meeting will take place in the conference room at 2 p.m.

388. talk about: They sat around the table, talking about their plans for the weekend.

389. the day after tomorrow: We have an important meeting scheduled for the day after tomorrow.

390. the day before yesterday: I met with him for lunch the day before yesterday.

391. the more… the more: The more you practice, the better you'll become at it.

392. the other day: I ran into Sarah at the mall the other day; it was a pleasant surprise.

393. think about: I need some time to think about whether I should accept the job offer.

394. think of: What do you think of the new restaurant downtown?

395. thousands of: There were thousands of people at the concert last night.

396. throw away: Don't throw away those old magazines; I can recycle them.

397. too…to…: She was too tired to go out last night.

398. try on: She tried on several dresses before finding the perfect one.

399. try out: He decided to try out for the school basketball team this year.

400. turn down: Can you turn down the volume on the TV? It's too loud.