题目内容
5. Tom (not study) English. He is studying Chinese.
6. —Who ( sing) a song?
—Li Ying is.
5. is not studying 6. is singing
练习册系列答案
相关题目
题目内容
5. Tom (not study) English. He is studying Chinese.
6. —Who ( sing) a song?
—Li Ying is.
5. is not studying 6. is singing