A lot of rich land has changed into desert, because farmers have many trees to grow crops in the field.A. turn downB. cut downC.broken down
—________? —He is tall.
The Greens moved to China a few years________.
—Listen!Who________the piano? —My sister.
To be a policeman is interesting________sometimes it’s kind of dangerous.
—I’ve shown you all the interesting and important places of our school. —Thank you for________so much time.