---Look!It _______ be Mr Zhang . ---No,it _______ be Mr Zhang. He has gone to Paris .
— Is Bill from Cuba ? —______ . He is from Canada.
— Goodbye, Miss Zhao. —________ .
— How _____ you , Miss Gao? — I ______ fine, thanks.
— Welcome to China! — _________ .
—Do I need to take any medicine? —Yes. _______twice a day.