Question

— It's said a pianist will perform at Poly Theater on Friday evening. Is it Lang Lang?
— Yes, it _______ him. He _______ for a week.

A．must be; has arrived here

B．maybe; has been here

C．must be; has been here

D．maybe; has arrived here

Answer 1

C

考查情態(tài)動詞和延續(xù)性動詞的用法。第一空表示很有把握的推測，用情態(tài)動詞must加be，may be 表示可能性小的推測，但是卻不能用maybe，因?yàn)閙aybe是副詞，而此句中缺少連系動詞；第二空后面有表示時(shí)間段的for a week，它需要跟延續(xù)性動詞連用。