单项选择题

—I have something important to do now, would you please look ______ my baby for a while —Sure.

A． for
B． after
C． up
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单项选择题
I ______ my clothes when the telephone rang.
A． washed
B． was washing
C． has washed
单项选择题
Bread and milk ______ the best breakfast for children.
A． be
B． is
C． are
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