下列各句均有一处错误,请选出来并在后面的横线上改正。
( ) 1. They are watch TV in the music room. ________________
A B C
( ) 2. We should keep our classroom cleaning. ________________
A B C
( ) 3. Not watch TV at school in the morning. ________________
A B C
( ) 4. All of my parents like listening to music. ________________
A B B C
( ) 5. There are not much milk in the milk box. ________________
A B C