地球表面的海陆面积之比为 [ ] A、3:7 B、4:6 C、6:4 D、7:3 发布时间:2017-05-13 19:40 │ 来源:www.tikuol.com 题型:选择题 问题: 地球表面的海陆面积之比为 [ ]A、3:7 B、4:6 C、6:4D、7:3
题型:选择题 —Is that Mr Li under the tree? —No, it ______ be him. He's in the office now. [ ]A. can't B. mustn't C. might D. must 查看答案