verbs must, have to or to be to. 1. You___(not tell) him about it. It's a secret.
2. It looks like rain. You___(take) your raincoats.
3. You ___(not talk) so loudly here.
4. In his youth he ___ (work) from morning till night to earn his living.
5. He ___(wait) at the station till it stopped raining.
6. The secretary informed us when the manager___(come).
7. They___(leave) on Saturday, but because of the delay with their visas they___(book)
tickets for Monday.
8. They___(not tell) him anything about it before they get further instructions.
9. He___(leave) for London that night.
10.___I (do) it all by myself?
11. It was too late to change their plans and they___(put up) with it.
12. You___(not prepare) all this work, I will help you.
13. Stay here till she is free. I think you___(not wait) long.
14. We___(conduct) a series of experiments this week.
15. Remember that we___(be) at this place not later than noon.
Exercise 10. Read the situations and write sentences with should (shouldn't) have or
