英语单句改错.

题目

英语单句改错.
英语单句改错.是改错,不是翻译哦.
1.Mobile phones can now be used for cameras and electric calendars.
2.His illness added much difficulty with our life.
3.If a phone starts ring in the classroom,teachers and students are disturbed and cannot work.
4.Students should obey school rule at school.
5.Some parents worry about that their children will spend too much time and money on phone calls.

答案

1 for 改成as..作为相机跟日历的方式.2 with改成to.词组.3 start to ring or start ringing.4 obey the rules at school 5 worry that their children would spend ...我凭语感,觉得would 用了虚拟语气会好一点,因为...