Bài 1: Chọn đáp án đúng.
1. We …… on the lake when it started to rain so we went home.
A. finished B. finishing C. were finishing D. are finishing
2. My dad found some money while he …… his suitcase.
A. packing B. package C. are packing D. was packing
3. My brother ……… in Ireland when he met his girlfriend.
A. study B. was studying C. were study D. was study
4. My grandma tried pizza for the first time while she ………. in Italy.
A. staying B. is staying C. is stayed D. was staying
5. My mom ………. in the sea when she saw a dolphin.
A. was swimming B. was swimming C. were swimming D. were swimming
6. ……. it ……. when you woke up this morning?
Bài tập 2: Chọn đúng thì của các câu sau:
1. I saw/ was seeing the accident when I was waiting for the taxi.
2. What were you doing/ did you do when I phoned?
3. They didn't visit/ weren't visiting their friends last summer holiday.
4. It rained/ was raining heavily last July.
5. While people were talking to each other, he read/ was reading his book.
6. Chris was eating/ ate pizza every weekend last month.
7. While we were running/ run in the park, Mary fell over.
8. Did you find/ Were you finding your keys yesterday?
9. Who was she dancing/ did she dance with at the party last night?
10. They were watching/ watched football on TV all day.