1 . 登上山顶后，你可以欣赏到激动人心的风景，真是赏心悦目。(非限制性定语从句)
After reaching the top, you can enjoy________________.

2 . 巴黎奥运会即将举行，这是展现各国体育水平的盛会。（非限制性定语从句）
The Paris Olympic Games will be held _________________.

3 . 在我看来，养成经常锻炼身体的习惯是很重要的，这可以帮助我们抵抗不同病毒的攻击。(非限制性定语从句)
________________, forming a habit of doing physical exercise regularly is important, ________________.

4 . In 2018, more than 760 million people in China participated in the sharing economy,          about 75 million were service providers.

A．which

B．when

C．of which

D．as

5 . Laughter is the best medicine, _________ means keeping a good mood is helpful to our health.

A．what

B．which

C．that

D．it

6 . Among the performers in the circus were some boys, ___________the youngest was only seven.

A．of whom

B．which

C．that

D．of those

7 . 下面每句一个错误，请在有错误的地方增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：每处错误及其修改均仅限一词。
1. Curiously, we looked around for other guests.
2. My deskmate is a girl whom we can get along easily.
3. That was the reason why he gave for his absence.
4. There was nothing else to do, we went home.
5. Quantities of food was spread out on the table.
6. Zheng He had over 300 ships, some of them were over 150 meters long.
7. I noticed the heavy objects went down more quickly than the smaller, lighter ones.
8. Eric the Red was forced to leave Iceland because he committed a murder, for which he got into trouble.
9. When he decided to set sail further west, there were 10000 Vikings live in Iceland.
10. Leif followed Biarni’s directions and sailed to where is believed to be the coast of present-day Canada.

8 . The National Military Parade was held on October 1st. The Parade attracted most Chinese to watch. (用定语从句合并)

9 . Sometimes Jo wonders ________ relevant chemistry is to her students, most of ________ may never need such knowledge again after they finish school.

A．how; them	B．how; whom
C．whether; them	D．whether; whom

10 . 他缺乏丰富的工作经验，对该公司文化一窍不通，这使他失去了一份薪水丰厚的工作，让他后悔不已。(which) (汉译英)