【小題1】Molly was singing at that time．（改為一般疑問旬）
________ Molly ________ at that time？
【小題2】The Greens have worked in China for four years．（對劃線部分提問）
________ ________ have the Greens worked?
【小題3】Last year．we planted 110 trees．（改為現(xiàn)在完成時）
So far，we ________ ________ 110 trees．
【小題4】Mary has learnt Italian before．（改為否定句）
Mary ________ ________ Italian before．
【小題5】Mr. Smith has few friends，________ ________？（完成反意疑問句）

1.Molly was singing at that time．（改為一般疑問旬）

________ Molly ________ at that time？

2.The Greens have worked in China for four years．（對劃線部分提問）

________ ________ have the Greens worked?

3.Last year．we planted 110 trees．（改為現(xiàn)在完成時）[來源:學(xué)#科#網(wǎng)Z#X#X#K]

So far，we ________ ________ 110 trees．

4.Mary has learnt Italian before．（改為否定句）

Mary ________ ________ Italian before．

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

根據(jù)句意和首字母或漢語提示，將單詞的正確形式寫在相應(yīng)的橫線上。

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.