Who knows the key ____ Exercise 1? Put up your hands.A. to B. of C. with
----Have you ever __________ Peter Tchaikovsky before? ----Oh,. A Russian composer of classical music.
---How much difficulty did you have________________ this physics problem? ---_____________. It's quite easy.
----______number of cars on the roads is growing too fast. ----I agree with you. ______ number of problems have appeared already.
――Good morning! My name is Jenny. I work for a sports newspaper. ――_______. What can I do for you?
――What did the Geography teacher ask you? ――The question is, “ Do you know _______?”.