Ex.15. Express the idea in the Present, Past and Future Indefinite (use the adverbials 1) Passengers [to cross] the railway lines by the bridge. 2) A lab assistant [to show] the equipment to the students. 3) The automobile plant [to produce] 1, 000 cars daily. 4) The students [to repeat] new words before the lesson. 5) He [to have] enough time to do this work. 6) Our dean [to deliver] a course of lectures on Physics. 7) The airplane [to leave] at noon. 8) The trains [to be late] because of track repair works. 9) The buses [to run] every five minutes. 10) The mechanic from the garage [to do] simple radio repair. 11) Summer holidays [to begin] in July. 12) It [to cost] a lot of money to go to England by air. 13) Robots [to substitute] people in some monotonous operations. 14) Railway lines [to connect] all parts of this country. 15) This company [to provide] us with all the necessary equipment. 16) We [to meet] every Sunday.