can i.yes,you could.这个对吗,我知道如果用could问,回答不能用could

改错-Could you help you?-Yes,I could.答案把yes,I could改成yes,I can,为什么呢? Could you perform Chinese Kung fu before?用Yes,I can还是用Yes,I could. Could I borrow your book?回答是Yes,I can.还是Yes,I could?输错了，回答是Yes,you can.还是Yes,you could? Could you swim when you were ten?No,I can't./Yes,I can./Yes,I could.哪个对为什么 -Could I use your computer?-____A.Sorry ,you couldn't B.Yes,you could.C.Yes,you can. Could you open the window for me?回答是Yes,I can.还是Yes,I could.Could you open the window for me?回答是Yes,I can.还是Yes,I could.并请说明理由, Could you help me carry the box?B.Yes,l could.C.No,I can't. Could you help me with my lessons?Yes I can.中为什么不能用could 单项选择：Could you lend me your bike?I'm going to the cinema tonight.A.Yes,I can B Yes,I could.C.Yes,you can.D.Yes,you could could i use your pen ? A.yes ,you can B.yes,sure C.no,you can't could you help me?怎么回答?选项A. Yes , please . B. Yes , I could. C. Yes, I can. D. You’re welcom Could I please use your computer A.Yes,I can.B.Yes,you can't.C.Sorry,but you can't.D.No,I can't. can i.yes,you could.这个对吗,我知道如果用could问,回答不能用could 1.could I use your dictionary?A ,yes you could.B ,yes,I can.C ,Sorry.I am using it .D ,NO,you couldn't. May I go with you?帮我回答A.yes,you can B.yes,you could C.No,you can D.NO,you couldn't 应该选那个 Could you play when you were five years old?肯定回答是Yes,I could.还是Yes,I can.是哪一个? Could you help me with my lessons?Yes I can.中为什么不能用cond may i 提问用什么回答?yes,you can（could）是不是都可以?