Put the correct answer into the box.

must

have to

I _________ submit my homework before 12 o'clock because the deadline is 12 o'clock.

Choose the best answer.

You ______ stare at the computer screen for too long. It is really bad for your eyesight.

Choose the best answer.

She_____ stay at home to look after her children because there is no one to help her.

Choose the best answer.

You _____ become more responsible by sharing the housework with other people in our family.

Choose the best answer.

My grandparents live in the suburbs, so whenever we visit them, we ______ take a bus.

Choose the best answer.

We _____ buy souvenirs for Sally. She doesn't like them.

Choose the best answer.

You _____ stay up at night, which is not good for your health.

Choose the best answer.

If you are a member of the club, you ______ pay to use these facilities because they are included in the membership fee.