3 . 正在建设的新体育场将是目前这个体育场的三倍大。(一句多译)
a. The new stadium being built will be ________ the present one.
b. The new stadium being built will be ________ the present one.
c. The new stadium being built will be ________ the present one.

4 . 然而，制造一个纸袋消耗的能量是制造一个塑料袋的四倍，用水量则多达三倍。
However, making a paper bag uses ________ and up to three times the amount of water.

5 . My hometown has developed into a modern city and it is ______ what is used to be.

A．twice as large as

B．twice more than

C．the size twice

D．larger than twice

6 . The new bridge is ________ the one built last year.

A．three times width of	B．three times the width that of
C．three times the width	D．three times the width of

8 . 下列句子中各有一处语言错误，请把错误改正，其他部分不得改动。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在右边横线上写出该加的词。
删除：把多余的词用斜线(＼)划掉，并在右边横线上写出该词，也用斜线划掉。
修改：在错误的词下划一横线，并在右边横线上写出改正后的词。
1. Your school is three times as bigger as ours.
2. Not all ads plays tricks on us though.
3. It’s a good idea have a picnic this weekend.
4. Which remains a mystery whether he can manage the team.
5. All of us have been attended the lecture about Pompeii.

9 . The number of students now in this school is four times________ it was ten years ago. （用适当的词填空）

10 . Our city has experienced twice _____ much rain this year _____ it did last year.