.—She must have gone back to the valley. —No, she_________. The entrance to it was nowhere to be found. 
#88490
A
mustn’t
B
needn’t
C
couldn’t
D
may not
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“Must we do it now?” “No, you _____.”
#90194
A
won’t
B
needn’t
C
can’t
D
don’t
       for the free tickets,I would not have gone to the film so often.
#87080
A
If it is not
B
Were it not
C
Had it not been
D
If they were not