2019-2020学年北师大版高中英语精华课件选修6:名词性从句1
2019-2020学年北师大版高中英语精华课件选修6:名词性从句1第2页

Tom asked me if/whether I could help his sister. Pay attention to what the teacher said.

动宾

介宾

I feel it possible that you will finish the work in a day.

It作形式宾语