1 Đổi từ câu sau thành câu phủ định nghi vấn rồi trả lời
1. He was planting trees in the garden at 4 pm yesterday.
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2. They were working when she came yesterday.
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3. She was painting a picture while her mother was making a cake.
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4. Anne was riding her bike to school when Peter saw her yesterday.
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5. He was typing a letter when his boss went into the room.
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Bài tập 2: Chia động từ ở dạng đúng để hoàn thành câu
1. I (walk)___________down the street when it began to rain.
2. At this time last year, I (attend)__________an English course.
3. Jim (stand) ________ under the tree when he heard an explosion.
4. The boy fell and hurt himself while he (ride)_________ a bicycle.
5. When we met them last year, they (live)______ in Santiago.
6. The tourist lost his camera while he (walk) _____ around the city.
7. The lorry (go) _____ very fast when it hit our car.
8. While I (study)_____in my room, my roommate (have)________ a party in the other room.
9. Mary and I (dance)_________ the house when the telephone rang.
10. We (sit)________ in the café when they saw us
