杭州交通信息网包装生产线价格:选择题一题
来源：百度文库 编辑：杭州交通信息网 时间：2024/05/07 02:45:42
I try to find ____that prevents so many people from taking part in the program.
A.why it does B.what it does C.what it is D.why it is
希望解释详细点，谢谢！
A.why it does B.what it does C.what it is D.why it is
希望解释详细点，谢谢！
c
it 是形式主语，也就是代替后面that从句
整句意思，我试图找到是什么让这么多人不参加这个项目