Exercise 11. Translate into English using the verbs can, may, must and the expressions to be + infinitive and to have-f-

1) Now the whole world will have to believe that mankind is destined to populate, if not all, many planets of the solar system. 2) If someone had said that about fifty years ago, they would have told him that it was impossible to think about it. 3) To skeptics who said that this can not be, we have to admit that we are destined to witness interplanetary flights. 4) In order to launch a space rocket into interplanetary space, scientists had to make precise calculations in order to know where to send the rocket. They decided that it should pass in the immediate vicinity of the moon. 5) It is believed that the Moon, perhaps, will serve as a base for interplanetary flights. 6) Scientists think that there must be no atmosphere on the Moon. 7) The difficulties that we will have to overcome in order to create passenger interplanetary rockets are very great. But we will undoubtedly overcome them.