问题
选择题
It’s already 11 o’clock and nobody answers the phone. George ________ asleep now.
A．must be
B．must have been
C．should be
D．should have been
答案
答案：A
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It’s already 11 o’clock and nobody answers the phone. George ________ asleep now.
A．must be
B．must have been
C．should be
D．should have been
答案：A