Exercise 3

Read the problem and complete your advice / comment. Fill in the correct form of the modal verb...
  1. Problem: I am at school and I want to smoke. – Your advice: You  [must not, mustn't]smoke at school. (it is not allowed)
  2. Problem: I am so tired! – Your advice: You  [should not, shouldn't] stay up late every day! (it is not a good idea)
  3. Problem: It's so late. – Your advice: You  [have to, must] hurry up. (it is necessary)
  4. Problem: I would like to ask somebody about the people. – Your advice: You  [must not, mustn't] ask anyone. It's a secret mission. (it is not allowed)
  5. Problem: There is an important exam at 9 am. – Your advice: You  [have] to get up early. (it is necessary)
  6. Problem: John smokes too much. – Your advice: Tom  [should not, shouldn't] smoke so much. (it is not a good idea)
  7. Problem: I study so hard! – Your advice: You  [do not have, don't have] to study so hard. (it is not necessary)
  8. Problem: Yesterday I got up at 4 am. – Your comment: You  [did not have to, didn't have to] get up so early! (it was not necessary)
  9. Problem: I paid him so much money! – Your comment: You  [did not have to, didn't have to] pay him anything. (it was not necessary)
  10. Problem: I want to kiss your sister. – Your advice: You  [can't, cannot] kiss my sister. (it is impossible)