choose
__________
you .............drive so fast .it is against the law
a-don't have to b-mustn't c-must d-had to

She ..........have to buy a new dress as her mother bought her a new one
a-mustn't b-didn't c-doesn't d-don't

people ..........get a passport before they go abroad
a-must b-don't have to c-have to d-has to

we..........buy souvenirs for our friends from Aswan
a-have got b-have c-has to d-must

1-b
2-b
3--d
4-d

1b - 2b - 3 a - 4 d

1-b
2-b
3-a
4-d

اتفق مع اجابة الزميل احمد المظلوم الا فى الجملة الثالثة فإن الاجابة هى c اي have to ولا تصح must لان الالزام من عنصر خارجي حيث انه لا يمكنه السفر دون جواز فهو مضطر

I agree with Mr Hagag

I completely agree with Mr. HAGAG.THANKS