1 . I spent my weekend ________ on the farm so that my father can have a rest.

A．to work

B．working

C．on work

D．worked

2 . 很多外国人对理解中国谚语有困难。
Many foreigners ________________ Chinese sayings.

3 . President Xi Jinping has proposed the “clear your plate” campaign, aimed at ________ (消耗，摄取) food normally, and stopping wasting food. （根据汉语提示单词拼写）

4 . I joined Casey, who was looking up at the screen on which readers' comments kept __________ __________ (突然出现). （根据汉语提示完成句子）

5 . I don’t think that the suggestion is perfect, but it would be worth _____.

A．putting forward

B．putting off

C．being put forward

D．of putting off

6 . Her father _________ in the USA for another year so that she could work toward her master's degree.

A．agreed her to say	B．permitted her stay
C．let her staying	D．approved of her staying

7 . I recommended ________ an English-Chinese dictionary, ________ I thought would be of great help to his studies.

A．buying; that

B．to buy; that

C．buying; which

D．to buy; which

8 . To prevent harmful habits like these from d_________(主宰) a teenager's life is essential. （根据中英文提示填空）