问题
选择题
| Jane is resting when someone ______ the door. |
A. knocks at B. is knocking C. knock at D. knocks |
答案
答案：A
搜题请搜索小程序“爱下问搜题”
| Jane is resting when someone ______ the door. |
A. knocks at B. is knocking C. knock at D. knocks |
答案：A