问题
选择题
| —Who is singing in the classroom? —_____ must be Susan. |
A. She B. It C. This D. He |
答案
答案：B
搜题请搜索小程序“爱下问搜题”
| —Who is singing in the classroom? —_____ must be Susan. |
A. She B. It C. This D. He |
答案：B
