Complete these sentences with the verbs in brackets in the correct active or passive infinitive-form.1) the situation is serious, he is addicted to drugs. something must (to do) … before it’s too late.2) it’s not certain how the fire started, but it might (to cause) … by an international action of a robber.3) don’t you think that more money should (to spend) … on labour colony.4) i haven’t received the letter. it might (to send) … to the wrong address.5) the prison is in a very bad condition. it should (to repair) … a long time ago.6) the injured man couldn’t walk and had to (to carry) … from the place where the accident happened.
1) must be done
2)be caused
3)should be spent
4) might be sent
5)should be repaired
6)had to be carried