__you ought to do is to see a doctor.A,HOW B.what C.which D .thatthat/what?

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/06 03:57:03
__you ought to do is to see a doctor.A,HOW B.what C.which D .thatthat/what?
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__you ought to do is to see a doctor.A,HOW B.what C.which D .thatthat/what?
__you ought to do is to see a doctor.
A,HOW B.what C.which D .that
that/what?

__you ought to do is to see a doctor.A,HOW B.what C.which D .thatthat/what?
B
what=the thing that...
引导主语从句,如用that明显是句子没主语.