1. 汤姆几乎不会说汉语。　

Tom _______ _______ speak Chinese.

7. The Greens have been in China for three years.(改为同义句)

The Greens _______ _______ China three years ago.

_______ _______ three years _______ the Greens came to China.

Three years _______ _______ since the Greens came to China.

答案：1.haven't;yet　2.Has;yet　3.has kept; for　4.How long　5.How soon　6.How often　7.came to; It is, since; has passed

6. Wang Lin goes to America once a year.(对画线部分提问)

_______ _______ does Wang Lin go to America?

5. They will be back in three weeks.(对画线部分提问)

_______ _______ will they be back?

4. The man has stayed here for two hours.(对画线部分提问)

_______ _______ has the man stayed here?

3. He borrowed the book from the library ten days ago.(改为同义句)

He _______ _______ the library book _______ ten days.

2. Anna's already got the mail from the mail-box.(改为一般疑问句)

_______ Anna got the mail from the mail-box _______?

1. They've already bought a new computer.(改为否定句)

They _______ bought a new computer _______.

5. 刘欢是音乐界的顶尖人物。

Liu Huan is a top man ______________.

答案：1.lots of original songs　2.was quite a hit　3.lead actors　4.see her off　5. on the music scene

●Exercises for sentence structure(句子结构专练)

4. 今天她要去上海，我将为她送行。

She is off to Shanghai today.I'll ______________.