【小题1】Molly was singing at that time．（改为一般疑问旬）
________ Molly ________ at that time？
【小题2】The Greens have worked in China for four years．（对划线部分提问）
________ ________ have the Greens worked?
【小题3】Last year．we planted 110 trees．（改为现在完成时）
So far，we ________ ________ 110 trees．
【小题4】Mary has learnt Italian before．（改为否定句）
Mary ________ ________ Italian before．
【小题5】Mr. Smith has few friends，________ ________？（完成反意疑问句）

1.Molly was singing at that time．（改为一般疑问旬）

________ Molly ________ at that time？

2.The Greens have worked in China for four years．（对划线部分提问）

________ ________ have the Greens worked?

3.Last year．we planted 110 trees．（改为现在完成时）[来源:学#科#网Z#X#X#K]

So far，we ________ ________ 110 trees．

4.Mary has learnt Italian before．（改为否定句）

Mary ________ ________ Italian before．

5.Mr. Smith has few friends，________ ________？（完成反意疑问句）

根据句意和首字母或汉语提示，将单词的正确形式写在相应的横线上。

1. You must stop s____________, nicotine (尼古丁) is bad for your health.

2. The girl s____________ a lot of time collecting stamps last year.

3. We were glad to celebrate our motherland, China’s s__________ birthday on October 1st, 2009.

4. I like ____________ (土豆) a lot, and my mother usually cooks it in different ways.

5. Which are __________ (重的), elephants or sheep?

Many trees _______ on the hills last year. And we will plant more this year.