单项选择题

______ , follow the directions on the bottle carefully.

A．When taken drugs
B．When drugs are taken
C．When one takes drugs
D．When taking drugs
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单项选择题
John regretted very much ______ unkind things about his boss.
A．to say
B．to have said
C．having said
D．being said
单项选择题
The expression on her face ______ me that she was lying.
A．reformed
B．conformed
C．confirmed
D．informed
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