单项选择题
I will have begun to do the work______5 o’ clock this afternoon.
- A．by
B．at
C．after
D．before
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相关考题
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单项选择题
______different life today is______what it was 15 years ago.
A．How; from
B．What a; from
C．What; from
D．How; with -
问答题
【B4】 -
单项选择题
The time he has devoted in the past years______the disabled is now considered ______of great value.
A．to help; being
B．to helping; to be
C．to help; to be
D．helping; being
