单项选择题

A．have
B．safety
C．fail
D．not
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单项选择题
Where is it safe to stay during an electrical storm
A． At open doorways.
B． In a closed car.
C． On the high ground.
单项选择题
A．such asB．likeC．areD．for
A．such as
B．like
C．are
D．for
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