Only when he has finished his homework he is able to play ,如何变为半倒装,应为is able to he ...

问题描述:

Only when he has finished his homework he is able to play ,如何变为半倒装,应为is able to he ...
Only when he has finished his homework he is able to play ,如何变为半倒装,应为is able to he play 还是is he able to play 为什么

Only when he has finished his homework is he able to play ,