作文地带核心提示： 名词性从句主语从句：主语从句，表语从句，宾语从句。1. we will do next is still under discussion.A. ThatB. WhenC. WhereD. What 名词性从句主语从句：主语从句，表语从句，宾语从句。

1. we will do next is still under discussion.

A. That

B. When

C. Where

D. What

2. was once regarded as impossible has now become a reality.

A. That

B. Which

C. Who

D. What

3. _______ books you borrow from the library should be returned in two weeks’ time.

A. Whatever

B. Which

C. No matter what

D. What

4. she will be given this job is still under discussion.

A. Although

B. Whether

C. If

D. What

5. He found at last ______ he had been looking for.

A. that

B. what

C. where

D. which

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