问题描述：
英语主语从句的问题,希望能给个比较详细的解析和答案~
1、________matters much ________ the headmaster supports our activity.A．It; whether B．What; whether C．As; that D．That; if
1、________matters much ________ the headmaster supports our activity.A．It; whether B．What; whether C．As; that D．That; if
问题解答：
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