Раскройте скобки и поставьте глагол в нужном времени и залоге; переведите предложения на язык: 1) russian scientists (to make) many important discoveries last century. 2) their laboratory (to visit) just by a group of american doctors. 3) when i (to cross) the street i (to meet) my friend. 4) many new books by russian writes (to translate) into english every year. 5) ann (to send) just two letters to her parents. 6) a new specialist (to send) to the chemical laboratory next month. 7) our lectures (to begin) at 9 o’clock. 8) my friend (to graduate from) the institute this year. 9) they (to show) already a new film. 10) don’t open the window. it (to rain) hard. 11) they (to finish their experiment by 10 o’clock. 12) the workers (to build) a new stadium by the end of last month.
2) was visited
3) was crossing, met
4)are translating?
5)sent
6)was sent
7)begin
8)was graduated from
9)had already showed
10)is raining
11)had finished
12)will build?