单项选择题

63（）

A．since
B．while
C．whereas
D．before

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单项选择题
62（）

A．In three years
B．For three years
C．Three years
D．After three years
单项选择题
There are signs ______ restaurants are becoming more popular with families.
A．that
B．whose
C．which
D．in which
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