I didn't go home until I finished my homework 中 finish 为什么加ed?
问题描述:
I didn't go home until I finished my homework 中 finish 为什么加ed?
答
用过去式与前面的didn't 对应.
I didn't go home until I finished my homework 中 finish 为什么加ed?
用过去式与前面的didn't 对应.