I didn't know__ I should do. [ ] A. what 发布时间:2017-07-02 01:48 │ 来源:www.tikuol.com 题型:选择题 问题: I didn't know __ I should do. [ ]A. what B. how C. when
题型:选择题 — Ann is still unhappy today. — It's all your fault. You ____ to her yesterday for your mindless mistake. [ ]A. should apologize B. should have apologized C. shouldn't have apologizedD. must apologize 查看答案