All I could do is to send him to school. A.which B.what C.that D.the thing

来源：学生作业学帮网 编辑：学帮网 时间：2024/05/14 18:50:25

All I could do is to send him to school. A.which B.what C.that D.the thing

C that.这是一个定语从句：All I could do is that to send him to school.其中,All是这个定语从句的先行词.在定语从句中如果先行词是All的话,关系代词就必须用that.

B.what

C that 同意楼上观点