Separation of Lanthanides/ Lanthanides and Actinides
Must have to
1. Have to & Must
Fill in the blanks with must,
mustn’t, have to or don’t
have to,doesn’t have to
2. 1. Most students in Britain ____ pay
at least part of their university
fees.
2. Joe ___ get up on Fridays because
he has no lessons in the mornings.
3. You ___ talk during the film
because other people will get
angry.
4. These library books are overdue.
So I ___ pay a fine when I return
them.
3. 5. Jeremy ___ drive to work because
the bus arrives there too late.
6. She can play the piano very well.
She ____ practise too much.
7. You ___ borrow this video. You will
enjoy watching it.
8. Non-swimmers ___ go into the
deep end of the pool.
9. You ___ come to the rehearsal
tomorrow if you want to be in the
play
4. 10. I ___ change schools nearly every year
because my family move a lot.
11. I ___ stop eating so much chocolate or
none of my clothes will fit.
12. They have promised to lend me a tennis
racket, so I ___ take my tennis racket.
13. When you come to London again, you ___
come and see us.
14. Paul doesn’t like his new job. Sometimes
he ___ work at the weekends.
5. 15.There is an elevator in the building,
so we ____ climb the stairs.
16.Be quiet! We ___ wake the baby.
17.At high schools students ___ wear
uniforms.
18.At universities students ____ wear
uniforms.
19.I ___ wear jeans at work. It is
forbidden!
6. Answer Key
1. Have to
2. Doesn’t have to
3. Mustn’t
4. Have to
5. Has to
6. Doesn’t have to
7. Must
8. Mustn’t
9. Must/ have to
10.Have to
11.Must
12.Don’t have to
13.Must
14.Has to
