问题
选择题
| Only one horse can go through the door _____. |
A. at once time B. at a time C. in no time |
答案
答案：B
搜题请搜索小程序“爱下问搜题”
| Only one horse can go through the door _____. |
A. at once time B. at a time C. in no time |
答案：B