There are two cats under the tree. One is fat and __________is thin.
( ) He came back ____ the earth. A. to B. of C. on
( ) I went to the airport ____ meet my father. A. to B. for C. with
( )He spent about twenty-three _____. A. week B. hour C. hours
( )____ was a great day. A. It B. They C. He
( )Did you go to ____ zoo? A. a B. an C. the