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.