填空题

Jack must (go) ______ away—we can’t find him anywhere in the factory.

【参考答案】

have gone
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Her early (arrive) ______ gave everyone a big surprise.
单项选择题
What’s the probable relationship between the two speakers？（）

A．Boss and secretary.
B．Husband and wife.
C．Salesman and customer.
D．Doctor and patient.
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