Although this ____ sound like a simple task, great care is needed.
#90479
A
must
B
may
C
shall
D
should
推荐题目
Without the teahcer’s help, I ___ the exam.
#88977
A
won't pass
B
wouldn't pass
C
wasn’t to pass
D
wouldn’t have passed
Let’s clean the classroom, _______? 
#89877
A
won’t you
B
shall we
C
do we
D
will not you
Had they known what was coming next, they ___________ second thoughts.
#87385
A
may have
B
could have
C
must have had
D
might have had