Malaysia Airlines Flight 370 ___________ course and turned back toward Kuala Lumpur -- but there were no indications from the pilot that he was doing so.
#86442
A
must have changed
B
could have changed
C
might have changed
D
should have changed.
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She got stuck in a terrible traffic jam on the highway to Shanghai，or she dinner with her family now．
#87436
A
will be having
B
would be having
C
is having
D
was having
With lots of papers to read, he ____________ to the cinema.
#87258
A
mustn’t
B
mustn’t have gone
C
couldn’t go
D
couldn’t have gone
__ It is so late. Our son __________ be back . __ Don’t worry . I dare say he ________ have some extra work to do.
#88334
A
can ; must
B
will ; might
C
should ; must
D
must ; may
Thank you for all your hard work last week. I don’t think we ______ it without you.
#90484
A
can manage
B
could have managed
C
could manage
D
can have managed