Закончите предложение соответствующей формой глагола в прошедшем простом или прошедшем совершенном временах. I English before I my job. (to teach; to change)

1. I had taught English before I changed my job.

2. I had already done my work before my manager entered.

3. Our relatives had left Moscow before we were born.

4. His brother had discussed the problem before he knew everything about it.

5. She had learned the poem before the teacher told her about it.