Doctors say that exercise is important for health, but it _______ be regular exercise. 
#87072
A
can
B
will
C
must
D
may
推荐题目
It is important that you _____ neatly and tidily _____ you feel confident for an interview.
#87336
A
wear; to make
B
have worn; to make
C
wear; made
D
wore; making
It’s a shame ______ able to give them any advice.  
#87215
A
not to have been
B
to have not been
C
to have been not
D
to not have been
Who do you suppose _________ turn to for help?
#87925
A
should we
B
we should
C
do we
D
can we