1.How long is it since you saw Tom?
When........did you see tom?.............
2. He can't pass the examination.
He wishes.....he could pass the examination...........
3. We can't go out because of heavy rain.
They wish.....it didn't rain heavily .........
4. They often go to Vung Tau at the weekends.
They used.....to go to Vung Tau at the weekends..........
5. How long have you learnt French?
How long ago......did you learn french?.......