can you tell me what i can do,can you tell me what can i do?what can i do?这3句话哪个是正确的?

问题描述:

can you tell me what i can do,can you tell me what can i do?what can i do?这3句话哪个是正确的?

can you tell me what i can do?
what can i do?

1.3都正确

could you tell me what can i do

第一句正确

can you tell me what i can do?what can i do?正确的