BÀI TẬP VỀ THÌ QUÁ KHỨ – WHILE AND WHEN

Exercise 1: Complete the Sentences

Complete each sentence using the correct form of the verb in parentheses. Use past simple or past continuous with “while” or “when.”

1. ________ (you, drive) home when it ________ (start) to snow?
2. He ________ (fall) asleep while he ________ (watch) TV last night.
3. I ________ (cook) dinner when I suddenly ________ (hear) a loud noise outside.
4. While she ________ (study), her friends ________ (play) games in the next room.
5. They ________ (not notice) me when I ________ (walk) into the room.

Exercise 2: Choose the Correct Option

Choose the correct form (a, b, c, or d) to complete each sentence.

1. I ________ (a. walked / b. was walking) to the store when I ________ (a. saw / b. was seeing) my old teacher.
2. While we ________ (a. drove / b. were driving) through the countryside, we ________ (a. stopped / b. were stopping) to take photos.
3. The phone ________ (a. rang / b. was ringing) while I ________ (a. took / b. was taking) a shower.
4. She ________ (a. read / b. was reading) a book when her friend ________ (a. arrived / b. was arriving).
5. When he ________ (a. opened / b. was opening) the door, the dog ________ (a. ran / b. was running) out.

Exercise 3: Fill in the Blanks

Fill in each blank with the correct verb form (past simple or past continuous) and use “while” or “when” where appropriate.

1. I ________ (walk) home ________ I ________ (see) an unusual bird in the tree.
2. ________ she ________ (make) a cake, the kids ________ (play) in the garden.
3. They ________ (eat) dinner ________ the doorbell ________ (ring).
4. ________ we ________ (wait) for the bus, it suddenly ________ (start) to rain heavily.
5. I ________ (lose) my keys ________ I ________ (run) in the park.

Exercise 4: Sentence Correction

Each sentence below contains a mistake. Rewrite each sentence correctly.

1. While I watched TV, the lights were going out.
2. I was reading a book when my friend was calling me.
3. When we were walked home, we heard a strange noise.
4. They were talking when the fire alarm was ringing.
5. The teacher explained the lesson while I listened.

Exercise 5: Sentence Transformation

Rewrite each sentence using “while” or “when” with the past simple and past continuous.

1. I was cleaning the kitchen. Suddenly, I heard a strange sound.
2. He was playing his guitar when his sister came into the room.
3. We ate dinner. Then, we watched a movie.
4. The children played in the yard when it started to rain.
5. I was looking for my keys when I found an old photo album.