Doctors say that exercise is important for health,but it__________be regular exercise .
#88242
A
can
B
will
C
must
D
may
推荐题目
If it __________for the snow, we ___________the mountain yesterday.
#86962
A
were not; could have climbed
B
were not; could climb
C
had not been; could have climbed
D
had not been; could climb
I request that you __________ the task on time.
#87205
A
finished
B
should finish
C
could finish
D
would finish
—You didn't wait for Mr. Smith last night, did you?—Yes, but we ________. He didn't return home at all.
#87275
A
don't have to
B
needn't have
C
didn't need to
D
should have
The professor requested that all the students ________ the reports at once.
#86365
A
would hand in
B
handed in
C
hand in
D
handing in
I can hear the Browns' phone bell ringing but no one is answering it; they _______ be at home.
#89680
A
would
B
might
C
needn't
D
can't