（）更适用于调查面广、以封闭式问题为主的调查。

A.访谈法

B.问卷调查法

C.观察法

D.电话调查法

—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