帮我改下语法`感谢.初二

1. I was 后面怎么写啊？_____ (telephone) a friend when Bob _came___ (come) in.
2. Jim ___was jumping____ (jump) on the bus as it ___moved_______ (move) away.
3. I___ already ___seen____ (see) the film. I __has seen_____ (see) it last week.
4. She ___was____ happy yesterday.
5. __Have_____ you ever __eaten______(eat ) chocolate sundaes ? ----No, never.
6. I __left____（leave）in a minute. I _finished___（finish）all my work before I _left_（leave）.
7. How long _was_____ the Smiths __staying______(stay)here? ---- For two weeks.
8. What are you __doing_______(do) now? I __am eating_________(eat) bread.
9. _______ he _has finished_____(finish) his work today ? ------Not yet .
10. Where’s Li Ming ? He ___has gone____ (go) to the teacher’s office.
11. It’s nine o’clock. My father___is working______(work) in the office.
12. Look, the boy___is putting______(put) the rubbish into the bin。
13. My father ____ just __has come______ (come) back

1 I was telephoning a friend when Bob came in. (用进行时表示一个动作发生的时候另一个动作正在进行，即Bob进来时我正在给一个朋友打电话)
2 Jim jumped on the bus as it was moving away. （车将要移动时吉姆跳上了车）
3 I have already seen the film. I saw it last week.（last week 是一个过去的时间状语，要用动词的过去式saw）
4 没错
5 没错
6 I am leaving in a minute. I have finished all my work before I leave. (leave是一个瞬间动词，用它的进行时表将来)
7 How long have the Smiths been staying here?（现在完成进行时）
8 没错
9 Has he finished his work today?（现在完成时）
10 没错
11 没错
12 没错
13 My father has just come back from work.
14 第一句话没错，Now it has become a large city.
15 I am going to China in two days.（be going to 表将来）
16 I have been working here since I moved here in 1999.
17 We were testing the new machine when the electricity went off. （注意主谓一致）
18 Listen, who is singing in the music room? Oh, Mary is singing there.（进行时）
19 没错
20 第一句没错，He has already paid fifty yuan for it.
21 没错