Grammar: Modal verbs (1) obligation, prohibition, ability, etc.

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* We use have to and need to for expressing obligation or necessity. For example: "I have to go to work today."

* We also use must for expressing obligation, it is more formal. For example: "I must do my homework."

* In the negative, must not is used for expressing prohibition. For example: "You must not smoke in the hospital."

* In the negative, don't have to and don't need to are used for expressing lack of obligation. This means you have a choice. For example: "You don't have to drink beer, we have wine if you want it!"

* should is used for expressing advice or recommendations in the positive and negative. For example: "You shouldn't eat so much salt!"

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Do the following sentences express obligation, lack of obligation, prohibition, ability, permission or recommendation?

For example:
0. You need to get a better job. obligation

1. You should go to France, the food is great!

2. You don't have to turn your mobile phone off at work.

3. You need to work harder if you want to get a higher mark.

4. You musn't drink and drive.

5. You can pass the exam if you really want to.

6. You can't smoke in restaurants here.

7. You don't need to bring anything special.

8. You shouldn't shout in the street.

9. You have to do a good job for your customers.

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