По 1 примеру с употреблением времён (1 пример, в разных временах)

1. Past Simple

2. Past Continuous

3. Past Perfect

4. Past Perfect Continuous

1. I drank a lot of tea yesterday, because it was holiday

2. He was doing his homework, when somebody knocked on the door.

3. I had done all my tasks by the end of the year

4. I had been studying English for 9 years before I went to United States