1. That’s a good suggestion! Let’s finish our work _____ we can be free this evening.
A. now that B. that C. because D. so that
答案：D
解析： 这是一个好的建议！让我们完成工作这样今天晚上就可以自由了； now that 既然，由于。

2. We must manage to do our work better with ____ people.
A. less money and few B. less money and fewer
C. little money and less D. few money and less
答案：B
解析： 我们尽力用更少的钱和人力来把工作做得更好；注意less修饰不可数名词，few修饰可数名词，little修饰不可数名词，表否定。

3. That tree looked as if it _____ for a long time.
A. hasn’t watered B. didn’t water
C. hadn’t been watered D. wasn’t watered
答案：C
解析： 这棵树看起来过水了；注意用被动形式。

4. _____ with the size of the whole earth, the highest mountain does not seem high at all.
A. When compared B. Compared
C. While comparing D. Comparing
答案：B
解析： 注意用被动形式，“比较”这个动作是被动的；另外，如果没有B项的话，A项也正确，但最常用省略When的这种；与整个地球来比，最高的山峰看起来也不算什么了。

5. I’d rather you _____ anything about it for the time being.
A. do B. don’t C. didn’t do D. didn’t
答案：C
解析： I’d rather 后面从句动词用过去式。