must vs have to

If you have a pet dog, you _____________ feed it every day

• has to

• must

• have

• have to

Son: Mom, I don't want to clean my room. _________________ it right now? Mother: Yes, right now.

• Do I have to clean

• Have I to clean

• Do I must clean

• Does I have to

If Sergio wants to become a musician, he ______________ every day.

• have to practice

• has to practice

• don´t have to practice

• to practice

You ________ speak on the cellphone on a plane

• must

• mustn´t

• have to

• has to

We _______ be quiet in the library

• must

• mustn´t

• have to

• must to

She ________ put the garbage in the bin or she will have to pay a fine

• must

• mustn´t

• have to

• must to

They _____ take photos in this museum

• don´t have

• mustn't to

• mustn´t

• don´t has

We _____ eat sweets in the classrooms, It's forbidden.

• mustn´t

• must

• must to

• to must

They _______ to study hard for their exams

• don’t have to

• mustn´t

• doesn´t

• haven´t to