—Why didn't you answer my phone when I phoned you at about 11 p. m. yesterday? —I ___________and failed to hear the phone.
#89324
A
might have slept
B
must be sleeping
C
might be sleeping
D
must have been sleeping
推荐题目
“Do you think he is lazy?” “I _________ so once, but I don’t now.”
#89120
A
may have thought
B
can have thought
C
may think
D
might think
The boss ordered that the work ______ right away.
#88012
A
should finish
B
finished
C
would be finished
D
be finished
He said he would come to attend the lecture if he ___________ time.
#87404
A
has
B
has had
C
will have
D
had
Jack _____ yet, otherwise he would have telephoned me.
#89350
A
mustn’t have arrived
B
shouldn’t have arrived
C
can’t have arrived
D
needn’t have arrived
Tom’s mother often requires that he more time in studying English every day．
#89977
A
spend
B
spends
C
spending
D
spent