单项选择题

This is ()! You can’t be too careful enough of tomorrow’s meeting.

A. serious
B. separate
C. necessary
D. senior

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单项选择题
The () I know him, the () I admire his abilities.

A. much; much
B. more; most
C. better; more
D. better; most
单项选择题
I will ask my father to telephone you () he comes back.

A. hardly
B. suddenly
C. quickly
D. immediately
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