单项选择题

He is very helpful. What he did for us made the job much easy().

A. done
B. doing
C. to do
D. being done

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I promise to look () the matter as soon as I get back to the head office.

A. into
B. in
C. for
D. after
单项选择题
Since she was accustomed to having her own room, it has difficult for her to () a roommate.

A. put up from
B. put up by
C. put up with
D. put up to
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