Переделать в другие времена настоящее,будущее) 1)my friend entered the medical institute last year 2)al students take exams in winter 3)the delegation will leave tomsk on monday 4)do you receive letters from your friends? 5)the students of our group attend all the lectures 6)some students failed their entrance exams 7)the lecture will last two hours 8)shall we go to the disco in the evening? 9)he was good at mathematics,but the failed in physics

1) My friend entered the medical institute last year. My friend enters the medical institute. My friend will enter the medical institute next year.

2) All students take exams in winter. All students took exams in winter. All students will take exams in winter.

3) The delegation will leave Tomsk on Monday. The delegation leaves Tomsk on Monday. The delegation left Tomsk on Monday.

4) Do you receive letters from your friends? Did you receive letters from your friends? Will you receive letters from your friends?

5) The students of our group attend all the lectures. The students of our group attended all the lectures. The students of our group will attend all the lectures.

6) Some students failed their entrance exams. Some students fail their entrance exams. Some students will fail their entrance exams.

7) The lecture will last two hours. The lecture lasts two hours. The lecture lasted two hours.

8) Shall we go to the disco in the evening?  Do you go to the disco in the evening?  Did you go to the disco in the evening? 

9) He was good at mathematics, but he failed in physics. He is good at mathematics, but he fails in physics. He will be good at mathematics, but he will fail in physics.