15. - Don't you think it necessary that he ____ to Miami but to New York?

　　- I agree, but the problem is ____ he has

　　refused to. (2005江蘇)

　　A. will not be sent; that

　　B. not be sent; that

　　C. should not be sent; what

　　D. should not send; what

　　【解析】選B本題既考查了虛擬語氣的用法，又考查了表語從句的用法。由necessary引導的主語從句或賓語從句，需要用shouId do，而他是要“被派往”邁阿密，所以第*空用(should)not be sent，而第二空在be動詞之后需要用一個表語從句，由于句子結構完整，所以用that。

　　16. - How do you ____ we go to Beijing for our holidays?

　　- I think we'd better fly there. It's much more comfortable. (2004福建)

　　A. insistB. want

　　C. supposeD. suggest

　　【解析】選A本題考查insist表示“堅持”時所帶的賓語從句用虛擬，即：insist that sb. (should) do sth. 所以本題選A。