单项选择题

I'm rather anxious () her, for I haven't heard from her for a long time.

A. toward
B. about
C. in
D. over

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单项选择题

We'll do what we can to get the goods () on time, said the manager of the company.

A. reached
B. delivered
C. returned
D. come

单项选择题

The authorities spend a lot of money () keeping the streets and parks clean.

A. in
B. on
C. up
D. out

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