--- Tom , why didn’t you answer my call yesterday afternoon?--- Sorry , I didn't hear the phone . I ___________ asleep.
#62840
A
must be
B
must have been
C
could be
D
should have been
推荐题目
-- Who do you think _____ such a foolish thing?-- It _____ Tom, but I’m not sure.
#62680
A
could have done; may have been
B
could have done; must have been
C
should have done; may be
D
must have done; might have been
________ you row a boat at the age of 10?  No, but now I ________.
#75228
A
Can;can
B
Can;could
C
Could ;can
D
Could;could