what do you think of ------- he did?I think he has no right ----it like that.横线处填

问题描述:

what do you think of ------- he did?I think he has no right ----it like that.横线处填
A.where;to do B.what;to do C.how;doing D.when;doing

选B
因为what可以引导宾语从句.在一次考试中怎么用英语表达during exam