引起开放性鼻音的疾病正确的是（）。

A.肥厚性鼻炎

B.鼻咽部肿瘤

C.腭裂

D.腺样体肥大

E.后鼻孔息肉

--- Don’t you think it necessary that he __________ to Miami but to New York?

--- 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