3.You __ read a book, if you want. B) may
4.You __ check with your parents. It is a rule. C) must
5.She ___ wear green uniform at her school. A)has to
6.__ I use your phone? B) may
7.You ___ ask your teacher, if you have questions. E) should
8.I __ go anywhere without my parent’s permission. B) mustn’t
9.Take an umbrella. It__rain later. A) Might
10.They ___ do their homework today because it is a holiday at the school. C) don't have to