84.一致错误-stay→stays stay作为谓语动词即“ if he stays out”。 85.正确
书面表达:
Dear Editor,
I’m a senior high student. Now many students use mobile phones. They
think it’s a fashion to use mobile phones. Besides, it’s very convenient to get
in touch with their families and friends by using mobile phones. But some
students break the rules in class. They bring their mobile phones to the
classroom and we often hear the ring of mobile phones in class. Some of them
even waste precious time in class typing short messages on the mobile phones.
In my opinion, the
classroom is a place for students to gain knowledge.Therefore quietness is
badly needed for us to learn our lessons .Those with mobile phones shouldn’t
take mobile phones to the classroom . We are supposed to concentrate on our
studies. The school should make a rule to forbid the students to use mobile
phones in the classroom.
Yours sincerely