1.went
 2.wasswimming
3.was drinking 
4.saw
5.was
6.was beating
7.asked
8.told
9.stayed
10.had

Bài 1:

On my last holiday, I went to Hawaii. When I went to the beach for the first time, something wonderful happened. I was swimming in the sea while my mother was sleeping in the sun. My brother was building a castle, and my father was drinking some water. Suddenly, I saw a boy on the beach. His eyes were blue like the water in the sea, and his hair was beautifully black. He was very tall and thin, and his face was brown. My heart was beating fast. I asked him for his name with a shy voice. He told me that his name was John. He stayed with me the whole afternoon. In the evening, we met again. We ate pizza in a restaurant. The following days, we had a lot of fun together. At the end of my holidays when I left Hawaii, I said goodbye to John. We had tears in our eyes. He wrote me a letter very soon, and I answered him.

Bài 2 :

1.At 8 o'clock yesterday evening, I was cooking dinner.

2.At 5 o'clock last Monday, I was studying at the library.

3.At 10:15 yesterday morning, I was having a meeting with my colleagues.

4.At 7:45 yesterday evening, I was watching a movie with my family.

5.Half an hour ago, I was taking a shower.

6.Matt phoned while we were having dinner.

7.The doorbell rang while I was reading a book.

8.We saw an accident while we were driving to work.

9.Ann fell asleep while she was listening to music.

10.The television was on, but nobody was watching it.