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Lesson objectives

In this lesson students will:

  • learn / revise should / shouldn't and must / mustn't

  • read a text about rules for social networking sites.

Exercise 1

the infinitive without to

Exercise 2

  1. shouldn't

  2. shouldn't

  3. should

  4. should

Exercise 3

  1. Should we order a pizza?

  2. Should they tell someone about the problem?

  3. Should Vicky go to the cinema with Matt?

  4. Should you paint your bedroom black?

Exercise 4

  1. You mustn't enter before 11 am!

  2. You mus knock before you open the door!

  3. You must take off your shoes!

  4. You mustn't make the bed!

  5. You mustn't move anything!

Exercise 5

  1. a piece of advice

  2. an obligation

Exercise 6

  1. You mustn't post photos without their permission.

  2. You mustn't enter before 11 am!

  3. You shouldn't give your personal information to people you don't know.

  4. You should write polite comments on other people's profiles.

  5. You shouldn't believe everything people write about themselves.

  6. You must remember that online friends aren't the same as real friends!