The lesson drawn from the coal mine accidents is that safety measures are so important that we _____ take them too seriously.
#87972
A
can’t
B
should
C
mustn’t
D
shall
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“Is Jack on duty today?”“It ____ be him. It’s his turn tomorrow.”
#88237
A
mustn’t
B
won’t
C
needn’t
D
can’t
---What did Kincaid say just now? ---He said he ________ a dog if he hadn’t been away from home too much.
#86679
A
had had
B
had
C
would have
D
would have had
If the American government the expert’s suggestion, the world economy would not be in such a mess now.
#86910
A
followed
B
follows
C
should follow
D
had followed
Doctors strongly recommended that my father more exercise regularly instead of sitting still before a computer all day long.
#86709
A
takes
B
take
C
took
D
had taken