单项选择题

I have found some articles _______the harmful effects of drinking.

A． being concerned
B． concerned
C． to concern
D． concerning
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单项选择题
I'm still unable to make myself _______in the discussion, which worries me a lot.
A． to be understood
B． understanding
C． understood
D． understand
单项选择题
Mary is the kind of person who always seems to be _______a hurry.
A． on
B． in
C． with
D． for
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