Question

Откройте скобки. Используйте прошлые простые или настоящие совершенные времена. 1. He (to give) his first lecture in banking in 2002. He (to become) a brilliant lecturer since. 2. We first (to observe) this effect in 2008. We (to make) good progress in studying it since. 3. I (to come) to work at this university in 2006. I (to publish) eight papers since. 4. Some years ago my friend (to read) a book on the history of economics. He (to be) interested in studying economics since.

Answer 1

Ответ:

Объяснение:

1. gave, have become

2. observed, have made

3. came, have published

4. read, have been

Answer 2

1. He gave his first lecture in banking in 2002. He has become a brilliant lecturer since.
2. We first observed this effect in 2008. We have made good progress in studying it since.
3. I came to work at this university in 2006. I have published eight papers since.
4. Some years ago, my friend read a book on the history of economics. He has been interested in studying economics since.