问题
改错题
从A，B，C，D四个选项中选出错误的一项，将序号写在括号里并将正确的写在横线上。
( ) 1. I is listening to music.
A B C D
( ) 2. What is John do?
A B C D
( ) 3. She's writing an letter.
A B C D
答案
1. A-am 2. B-does 或 D-doing 3. C-a
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