Tom _____ full marks, but he was too careless and made a spelling mistake.
#86664
A
could gain
B
could have gained
C
must have gained
D
must gain
推荐题目
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