1. I am selling this bicycle. You want to buy it?
2. What do you think you are doing?
3. I do not understand what he is saying. Is he speaking Spanish or Portuguese?
4. We have been stayng in this hotel since last Monday and we haven't had a decent meal during all this time.
5. I am living with my friends now as the workmen have not yet repaired the roof in my house.
6. John and Polly have been married for fifteen years already. They are going to celebrate their wedding anniversary this Saturday.
7. This is the first time I have heard this expression.
8. James has always wanted to become an actor and now his dream has come true.
9. Why are you smelling the milk? — I think it has gone off.
10. It has been raining for five days already. The weather is getting worse and worse.