— ____ I go out to play now , Mum ?     — No , you ____ . 
#89777
A
May ; shouldn''t
B
Can ; needn''t
C
Must ; can''t
D
May ; must
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In order to produce more grain, it________that the area of farmland_____.
#87745
A
is demanded, being increased
B
has been demanded, be increased
C
demand, should be increased
D
demands, should increase
---I was trying to carry out the plan, but I failed.---Well, you _________, for we were uncertain it would do ________.
#87807
A
needn’t do that, in fact
B
needn’t have done, in effect
C
needn’t have, in practice
D
needn’t, in time
 I have lost one of my gloves. I _____ it somewhere. 
#89289
A
must drop
B
must have dropped
C
must be dropping
D
must have been dropped