could 和can的区别.could you help me with it?为什么不能改成can you help

could 和can的区别.could you help me with it?为什么不能改成can you help could you help me with it?能改成could you help me with my Chine Can you help me with my Chinese?Could you tell "Could you help me with my lessons?""Yes I can."中为什么不能用could "Could you help me with my lessons?""Yes I can."中为什么不能用cond Could you help me with it?简略的回答 It could help you和It can help you哪个正确? could you help me? I can't decide ______.Could you help me? could you help me with it 词组是什么 --Could you help me with my homework?--________ A.Yes,I can. help,me,my,could,lesson,you,with(?)