There are many kinds of animals in the .
Could you tell us _____ you are getting on well with your classmates?
.----Look! Our Chinese teacher, Mr Zhang, is playing badminton there. ----No, it ________ be Mr Zhang,. He has gone to Guangzhou for a meeting.
____Tom ______ his friend know about types of personality.
----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.