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GRAMMAR 2

‘’have to / has to’’
• We use these structures to express responsibility or necessity.

Positive Negative Question Short Answers
I I I Yes, I / you / we / they do.
You have to go now. You don't have to go now. Do You have to go now? No, I / you / we / they don’t.
We We We
They They They

He He he
She has to go now. She doesn't have to go now. Does she have to go now?
It It it Yes, he / she / it does.
No, he / she / it doesn’t.

EXERCISES

1
Use the verbs in the brackets to complete the sentences with the correct forms of ‘’have to’’.

1. Helen ___________________ (not get) up early tomorrow.
2. We ___________________ (use) public transportation to reduce air pollution.
3. ___________________ they ___________________ (recycle) these materials?
4. Jack ___________________ (plant) more trees next week.
5. What ___________________ you ___________________ (do) for this problem?
6. Terry and Gary ___________________ (not drive) to work tomorrow.
7. Her parents ___________________ (attend) a meeting in the afternoon.
8. They ___________________ (prevent) the water pollution here.

2 Write sentences in the correct forms of ''have to''.

1. We/save/water and electricity.
_________________________________________________________ .

2. you/grow/organic vegetables/in your garden?
_________________________________________________________ ?
3. Jack /not tidy up/the garden/at the weekend.
_________________________________________________________ .

4. They/keep/their environment clean.
_________________________________________________________ .
5. Mathew/start/a campaign/for this environmental problem?
_________________________________________________________ ?

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