Поставить глаголы в скобках в нужном времени.

1) By this time next year you (to graduate) from the University.
2) All last week he (to prepare) for the examinations.
3) That man (to teach) at the University since 1985.
4) Water (to change) into ice when the tempreture (to drop) below zero.
5) Kindly repeat what you just (to say).
6) I only (to succeed) in solving the problem after I (to work) on it for several hours.
7) He reminded me that we (to be) classmates at school.
8) I (to hear) that you (to give) up the idea of learning English.
9) By the time he (to be) thirty he (to become) a good engineer.
10) My friend (to go) to Moscow last summer and he (to work) there since then.
11) When I (to get) back they probably (to work) at the computer.
12) When I (to go) to the library the next day I (to find) the book exactly where I (to leave) it.

1) By this time next year you will have graduated from the University.2) All last week he was preparing for the examinations.3) That man has been teaching at the University since 1985.4) Water changes into ice when the tempreture drops below zero.5) Kindly repeat what you have just said.6) I only succeed in solving the problem after I have been working on it for several hours.7) He reminded me that we had been classmates at school.8) I heard that you had given up the idea of learning English.9) By the time he is thirty he will have become a good engineer.10) My friend  went to Moscow last summer and he had been working there since then.11) When I get back they probably will be working at the computer.12) When I go to the library the next day I will find the book exactly where I have left it.