--Is it necessary that he ____ to Qingdao but to Weihai?--I agree, but the problem is _
--Is it necessary that he ____ to Qingdao but to Weihai?
--I agree, but the problem is _____ he has refused to.
A.will not be sent, that
B.not be sent, that
C.should not be sent, what
D.should not send, what