Answer all the questions:
Put the correct forms of tenses in the following sentences:
1. Recently, the price of petrol (go) up.
2. I (do) a lot of work today.
3. The train (leave) before we reached the station.
4. I wish my brother (be) here.
5. As he (cross) the road, a bus knocked him down.
6. I (think) of going abroad for quite some time.
7. This paper (appear) twice a week.
1. has gone
2. did
3. had left
4. were
5. was crossing
6. have been thinking
7. appears
2. did
3. had left
4. were
5. was crossing
6. have been thinking
7. appears