问题

It is very kind _____ you to help me with mywork because it is very difficult _____me to do it by myself.
A:of; for
B:of; of
C:for;of
D:for; for
B:of; of
C:for;of
D:for; for
正确答案是:
同类题型
_____ you tell me how to use this digital dictionary?
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Be sure to get there on time, _____ you? — Of course, we _____.