Mrs. Black isn’t in and I’ll have to ring ___. I would appreciate it if you ring ____ after 6 o’clock.
15. It’s only by travelling or living in a country and getting to know its inhabitants and their language _________ one can find out _________ a country and its people are like.
14. There is no doubt__________since he is always a punctual person.
13._________his size, I guessed that he was a basketball player.
12. But for your help, I_____________the exam.
11.Word came________the president would be shown around our school.