Заполнить пробелы, словами : can, may, ought to, mustn`t, could, must, should, needn`t, be able to, have to, to be to. 1) hurry up. the in a quarter of an hour. 2) i`m sure he not do such a thing. you speak to him yourself. 3) when i was young, i walk for many hours running (подряд). 4) the concert be held yesterday but it was put off because of the illness of the pianist. 5) i won`t to translate this text until i look up all the new words. 6) you go to a post-office. you drop your letter in any post-box. 7) we isolate the boy. he infect other children. 8) we fight against international terrorism with all possible means. 9) you visit your parent more often. they are very lonely. 10) you speak to your teachers in such a way.
2) may
3) Could
4) Must
5) be able to
6) needn`t, should
7) must, can
8) have to
9) ought to
10) may