1. It was …. that we felt tired when we arrived .

2. We were in such a bad financial situation that we had difficulties …………. our bills each month .

3. The exhaust gases of a gasoline engine would produce intolerable noise ……… to escape directly.

4. ……… it was foggy on the motorway we arrived home safely .

5. “How many brothers do you have ?” “Two ,one’s here and ………… in Tabriz .”

6. The car I purchased cost twice ………. Jack’s .

7. His plays are so difficult to understand that even the critics find difficulty …………them.

8. I can’t help …………. that we made the wrong decision.

10. He is mentally ill and cannot be held ……. for his actions .

11. I still remember the day …… went to Isfahan .

12. Listen ! Someone ………. Upstairs .

13. We ………. the report by the end of this week .

14. …….. about the tragedy , we would never have come without first calling .

15. I have recently begun to doubt whether my own faculties are in danger to lose their balance .