（ ）16-----How are you ? ------- _________________.
A. Fine, thanks. B. How are you? C. How do you do?
（ ）17------Good morning! -------- ____________.
A. Good afternoon! B. Good evening! C Good morning!
（ ）18. This is a boy. ____________ name is Jack.
A. His B. He C. She
（ ）19 —What’s this? —It’s ______ orange.
A. a B. an C. the
