问题
选择题
13. –Just now I called home but nobody answered.
--Oh, sorry. I ________.
A．must have fallen asleep
B．must fall asleep
C．can’t been asleep
D．must be asleep
答案
答案：A
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13. –Just now I called home but nobody answered.
--Oh, sorry. I ________.
A．must have fallen asleep
B．must fall asleep
C．can’t been asleep
D．must be asleep
答案：A