You _____ pay your library fines. If not, you _____ not be allowed to graduate.
#90180
A
may; should
B
should; need
C
must; will
D
will; can
推荐题目
 I ________ him in time, otherwise he would have fallen off the bike.
#86485
A
had supported
B
supported
C
have supported
D
support
 Look at the trouble I am in! If only I          your advice!
#86884
A
followed
B
had followed
C
should follow
D
would follow
 Since the road is wet this morning, _____ last night.
#90138
A
it must rain
B
it must be raining
C
it must have rained
D
it must have been rain