Exercise 1. put “ can, may, must, should, ought to, have to, be to, be able to” (or the negative forms) and “ needn’t” in the spaces. 12. they do all the exercises; it will be sufficient if they do four of them. 13. you do whatever you like. 14. sooner or later one choose. 15. i read to the end of the story, because i want to see who gets the treasure. 16. go right in. you report at once. 17. she sing quite well. 18. you say anything. just nod your head and he will understand. 19. i use your phone? – you ask for permission; you use it whenever you like. 20. is she waiting? she wait for me at home. we’ve arranged so. 21. you take a horse to water, but you make him drink. 22. the ice is quite thick. we walk on it. 23. if you don’t know the meaning of a word, you use a dictionary. 24. the day we start, it rained worse than ever.