问题描述：
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.
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.
问题解答：
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