Do you know what can he do?如果不对请指教怎么改

do you know what i do?can you guess? You never know what you can do until you try. You never know what you can do until you try. what do you know Do you know what Do you know what? what can i do for you/?what you said made me very sad do you know Do you understand the sad heart?What do you know?What I can move you? i dont know what ()(do)next.can you help me? what can you do?what can't you do?what about the people you know?write at least five sentences. what can you do what can't you do what about the people you know 回答5句以上 What places do you know?（10个） What can you do there? What can you do? what can you do? What can you do Do you know what that thing can do to you?翻译. what do you know是什么意思? Do you know ,what's -