改错-Could you help you?-Yes,I could.答案把yes,I could改成yes,I can,为什么呢?

问题描述:

改错-Could you help you?-Yes,I could.
答案把yes,I could改成yes,I can,为什么呢?

Yes,I can
问句的Could 只是表达委婉的提问,并不是过去式.