问题

You see，I’m poor inmaths，you are not good at English，and…—That’s________we should help each other.

A:when
B:where
C:how
D:what

正确答案是：

同类题型

Many people are thecountryside the cities.

In order to improve English, ________________.

3. The power station we visited half the province’s energy.

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In order to finish the experiment successfully, the professor always _________, for every day the light in his room didn’t go out until 4 a.m.