单项选择题

The doctor told him to be careful when taking sleeping pills because too many ______ could be.

A．lethal
B．vital
C．wholesome
D．sanitary
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单项选择题
They were tired, but not any less enthusiastic ______ that account.
A．on
B．by
C．for
D．with
单项选择题
So ______ was the mood of the meeting that an agreement was soon reached.
A．resentful
B．amiable
C．suffocating
D．gloomy
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