He has no idea what the book is about.He        have read it very carefully.
#87733
A
needn’t
B
shouldn’t
C
can’t
D
mustn’t
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The board considered it urgent that those files _____ right away.
#86957
A
be printed
B
will be printed
C
must be printed
D
had to be printed
________ the help from the doctor, the little boy _________ his life.
#88457
A
Apart from; should have lost
B
Without; could lose
C
Except for; would have lost
D
But for; would have lost
 He _____ without saying good-bye to them, for he always has good manners.
#90153
A
mustn’t have left
B
may not leave
C
shouldn’t have left
D
can’t have left