what can i help you with?为什么要加with?不加的话对吗?

what can I help you? what can I help you How can I help you 和 What can I help you 的区别 how can i help you?还是what can i help you? Can I help you?（改成同义句） What can I help with you? I’ll do what i can do help you. I can help you ( ) I can help you ( ) can i help you Can i help you “Can I help you? I can help you ( ) I can help you ( ) I can help you ( ) I can help you ( ) I will do what I can to help you .what I can 作什么成分啊 i dont know what ()(do)next.can you help me? what happened!my friend how can i help you