matters much our headmaster supports our plan.
A. As; that
B. It; whether
C. That; if
D. What; whether
网友回答
A. As; that
(答案→)B. It; whether
C. That; if
D. What; whether
解析:句意:是否校长会支持我们的计划很重要。这里用it做形式主语,whether应该的是真正的主语从句,如果不用形式主语这句话是:Whether our headmaster supports our plan matters much.所以选B。