问题
选择题
| I saw some boys _______ soccer on the playground. |
A. are playing B. to play C. played D. playing |
答案
答案：D
搜题请搜索小程序“爱下问搜题”
| I saw some boys _______ soccer on the playground. |
A. are playing B. to play C. played D. playing |
答案：D
