1. There is nothing to argue about.
2. Here are the data to be processed.
3. They are glad to have received a letter from his son.
4. He was the last to arrive to the conference.
5. It was difficult for me to find the right solution.
6. I’ve got a task to perform.
7. I have to be disturbed when I am watching TV.
8. I’m sorry to be disturbing you.
9. The government announced new measures to deal with inflation.
10. We are glad to have been given this opportunity.
11. They prefer to be paid now.
12. Another reason to consider is the absence of necessary facilities for the experiment.
13. This method was introduced to active better results.
14. They were glad to have been invited to the celebration.
15. To extend the main street they had to destroy some buildings.