题目内容

Hello, who ____________ speaking?

A. is it
B. are you
C. is he
D. is she

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更多问题

A: Someone is at the door.B: __________?

A. What is it?
B. Who is it?
C. Who is he?
D. Which one is it?

I find ____________ to make some changes.

A. it is quite necessary
B. that is quite necessary
C. it quite necessary
D. quite necessary

A solar day is the length of time _________ the Earth to revolve once around the sun.

A. takes
B. takes it
C. it takes
D. taking

___ from the sun _ we get light and heat.

A. It is ... that
B. It was ... that
C. It must be ... that
D. It can be ... that