单项选择题

A.We' re waiting to get building approval.
B.Because the prices of shoes have gone up.
C.The post office is right across from the mall.

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A.DSL
B.无线局域网
C.光纤
D.宽带

A．Yes，I’m leaving tomorrow.
B．No，his family is pretty small.
C．Yes，her parents started it.