用所给动词的正确形式填空。
1. ______ (read) in the sun is bad for your eyes.
2. You should ________(keep) your room clean.
3. Don’t_________(go) home late.
4. ______ (not talk) in the cinema.
5. You_______(should) help to do housework.
6. She often __________(talk) loudly in the classroom.
7. You shouldn’t _______(watch) TV too late.