2

CW. Answer the questions.

1. Why do countries exchange students?
2. When did exchange programs start?
3. Where do exchange students live?
4. What do students have to learn in the USA?
5. How can students get a scholarship?
6. How long do exchange students have to stay in the USA?

GRAMMAR FOCUS The Modal Verb have to

Have to | The Present Simple | The Past Simple
Positive | I/we/you/they - have to He/she/it - has to | I/you/he/she/it/we/you/they - had to
Negative | I/we/you/they - don’t have to He/she/it - doesn’t have to | I/you/he/she/it/we/you/they - didn’t have to
Questions | Do/we/you/they - have to Does he/she/it - have to | Did I/you/he/she/it/we/you/ they - have to
Sample: Positive: I/we/you/they have to learn these rules now. Interrogative: Do I/we/you/they have to learn these rules now? She has to go to the party today. Does she have to go to the party today? I/You/He/She/We had to stay in London last week. Did I/You/He/She/We have to stay in London last week?

3

PW. Fill in the gaps with “to have to“ paying attention to the tense form and Grammar Focus above.

1. Peter ... to help his little brother to do his lessons.
2. Students ... to take part in this competition.
3. They ... to live with host families last year.
4. My brother ... to go to the library yesterday.
5. There is a lift here, you ... to climb the stairs.
6. The children ... to walk home from school every day.
7. Lamiya ... not ... to work on Sundays.
8. We ... to take a taxi to school yesterday.