单项选择题

A．Because it easily causes fire.
B．Because it will cause a lot of noises.
C．Because it will make the floor dirty.
D．Because children are frequently present there.
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单项选择题
A．In the post office.B．In a department store.C．In a supermarket.D．In a library.
A．In the post office.
B．In a department store.
C．In a supermarket.
D．In a library.
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