一、用所给单词的适当形式填空。
1. Don’t ________(listen) to music in the library.
2. Do we have to ________(clean) the room every day?
3. You can’t ________(wear) sunglasses in the classroom.
4. Please ________(arrive) at school on time (准时).
三二、按要求完成句子，每空一词。
1. -- Canthe students eat in the classroom? (作否定回答)
