几道英语语法题,急急急!!!

来源:百度知道 编辑:UC知道 时间:2024/05/10 13:29:56
前两道是选择题:

In practice, setting up a chain of command in a business can be a very complicated task, __________ it involves the interaction of real human beings
A. How
B. As

In the 17th century, North America was vast and unconquered, ____________ only at great cost.

A. It promised riches but yielded its bounty.

B. Promising riches but yielding its bounty

C. By promising riches but by yielding its bounty

D. Its riches were promised but its bounty yielded.

后面三道是改错题,括号里面的是选项A或B或C或D,哪个部分错了就选哪个:

Few synthetic vitamins and minerals in pill supplements are absorbed so efficiently by the body
(A) that are(B) those occurring(C) naturally in foods(D).

On the one hand, most Americans feel(A) that space exploration is legitimate and important(B)national undertaking; on the contrary(C), they worry about(D) the amount it costs.

Vitamin K providing(A) the necessary(B)impetus f

1, B 表因果关系
2,B 非谓语动词 动名词做状语 该句子没有连接词,所以只有一个谓语动词,因此排除A和D

1,B 去掉those
2,C contrary改为other hand
3,A providing改为provides