Unfortunately, coal causes serious air pollu- tion and increases global warming. A. bum B. burning C. burned D. burns 题目和参考答案——青夏教育精英家教网—

题目内容

4. Unfortunately, coal causes serious air pollu- tion and increases global warming.

A. bum B. burning

C. burned D. burns

4. B

4. B解析:此句缺少主语，故用动名词作句子的主语。

练习册系列答案

相关题目

7. Let's go to the chemist's we can get the medicine we need.

A. what B. where

C. that D. which

8. Recently I bought an ancient Chinese vase,

was very reasonable.

A. which price B. the price of which

C. its price D. the price of whose

4. Now they're living a happy new life in different areas.

翻译:

仿写他虽然是一位著名的科学家,却过着俭朴的生活。

9. The Three Gorges Dam,which is the biggest construc- tion project in China since the building of the Great Wall and the Grand Canal, to control flood- ing and provide hydro-electric power for the central region of China.

A. was built B. is built

C. will be built D. has been built

2. The boy had a escape when he ran across the road in front of the bus.

A. close B. short

C. narrow D. fine

12. What a pity!I missed meeting my boss at the airport

because my car was in the traffic jam.

A. broken up B. kept back

C. held up D. kept up

5. Some of them are being removed and some are being put museums.

4. The city has been under (建设) since last year.

试题分类