19．--What's the matter?--I am having trouble who has taken my book．A．finding B．looking for C．finding out D．looking up 【查看更多】

 

題目列表(包括答案和解析)

—What’s the matter?

—I am having trouble     who has taken my book.

A．finding             B．looking for       C．finding out       D．looking up

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－What’s the matter?

－I am having trouble ________ who has taken my book．

[　　]

A．finding

B．looking for

C．finding out

D．looking up

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