A.— Can you run like a cat?
— Yes,I can.I run fast.
B.— Let's play!3,2,1,go!
— Four,five,six,pick up sticks.
C.— I'm small.You' re big.
— I'm a bear.You' re a frog.
D.— Danny,are they your parents?
— No,they' re my grandparents.