Помогите срочно на завтра!!!
Write what you must/ mustn't/ have to/ need/ needn't do at school. Add two sentences of your own.
1)We mustn't use our mobile phones in class.
2) ____ do tests every day.
3) ____ wear a uniform.
4)_____ study Astronomy.
5)_____ study Biology.
6) _____ do homework everyday.