题目内容

I think______, as what you say, they should stay calm from time to time.

A. that
B. /
C. whether
D. if

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He had learned the knowledge about mathematics and finance, but he doesn’t know ___ items it takes to start a business here.

A. how
B. what
C. when
D. which

Do you know why the system doesn't work?- Sorry, let's ask the engineer ____.

A. what is the matter
B. what the matter is
C. how is the matter
D. how the matter is

To tell you the truth, this is _____ in the world.

A. which I have
B. that I have
C. what I have
D. whether I have

This theater is not ______ it was ten years ago.

A. that
B. when
C. which
D. what

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