The volunteers      a lot of help to the community for nearly ten years.
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A
offered
B
are offering
C
will offer
D
have offered
推荐题目
The film began 10 minutes ago.
#38750
A
The film has begun for 10 minutes.
B
The film didn’t end 10 minutes ago.
C
The film has been on for 10 minutes.
D
The film has on 10 minutes.