题目内容：

句型转换。（10分）

1.Jim is at home. (改为否定句)

Jim _____ _____ at home yesterday.

2.He sang an English song yesterday. (对画线部分提问)

What _____ he _____ yesterday?

3.They had a good time at the party last night. (改为同义句)

They _____ _____ at the party last night.

4.He can swim now. (改为否定句)

He _____ swim when he was 7 years old.

5.They played basketball on the playground yesterday afternoon.(对画线部分提问)

_____ _____ they _____ on the playground yesterday afternoon?