Bài 15 : Điền must/ mustn’t/ don’t have to/ doesn’t have to/ have to/ has to vào chỗ trống sao cho phù hợp.
. You ... ....................worry about her! She's all right now!
2. He's very ill, he................ stay in bed.
. Children .................... play in this dangerous place.
4. We are on Saturday! We........................ to get early!
5. You ................. smoke here! It's a school!
6. Old people.................. be helped.
7. You ................... forget your dictionary for the exam
!8. She....................... choose if she doesn't want to!
9. They are happy because they...................... wear a uniform in their new school.
10. The river is too deep, you.............................. swim here!
Loga
Sinh Học lớp 12
