保持下列句子句意不变。下面的句子怎么做？

1.He doesn't know what to do next. 宾语从句的主语he 和主句主语he 指的是一个人。
2.Can you teach me how to make a cake?宾语从句的主语I 和主句宾语me 指的是同一个人。
3.My parents will tell me which way to go.
4.Did they tell you where to go?
5.We haven't decideb when to have the class meeting.

这其实是个语法现象。当宾语从句的主语和主句的主语或宾语一致的时候，宾语从句可以简化为wh_+to do的形式。按照这个方法，你也可以试一下。

1，what to do
2,how to make
3,which way to go
4,where to go
5,where to have

考察的是一个语法，不定式和将来时的替换

1) what to do
2) how to make
3) where I should go
4) where to go
5) when to have