填空题
Hand in your papers when you()(finish) the test.
【参考答案】
have finished
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填空题
The family()(be) in Australia for five years.
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单项选择题
Commercial television programming is a kind of()communication.
A.point-to-point
B.point-to-multipoint
C.multipoint-to-point
D.multipoint-to-multipoint
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