单项选择题

All the tasks ______ ahead of time, they decided to have a dinner party to celebrate.

A. have been finished
B. had been finished
C. having been finished
D. were finished
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单项选择题
I have the message ______ below for you to forward to him.
A. been attached
B. to attach
C. attaching
D. attached
单项选择题
When ______ to tell the difference between British and American English, the linguist made a long and ______ speech.
A. asked; tired
B. asked; tiring
C. asking; tiring
D. be asked; tired
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