单项选择题

Far too many owners of electric appliances have a hard time ______ qualified repairmen to fix their machines.

A. finding
B. to find
C. to finding
D. find
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单项选择题
I regret ______ those insulting words at the conference.
A. saying
B. to say
C. says
D. said
单项选择题
The scientist thinks he can read a man's ______ from his favorite music.
A. attribute
B. feature
C. property
D. character
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