摘要：Who is behind the door

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someone the door. Who is it?

A.
There's, in
B.
There're, at
C.
There's, at
D.
There're, behind

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________ someone ________ the door. Who is it?

[　　]

A．There's, in

B．There're, at

C．There's, at

D．There're, behind

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—______is my bag?
—It's behind the door.

A. What
B. Who
C. Where
D. How

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—_______ is my bag?
—It's behind the door.

A. What
B. Who
C. Where
D. How

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________ is my bag? It's behind the door.

[　　]

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