Ⅰ. 单项选择
1. —Do you know _______ man in black over there?
—Yes. He is _______ office worker of Beijing Hotel.
A. a; an B. the; a
C. the; an D. the; the
2. —Where’s your mum, Lucy?
—She left a(n) _______ saying that she has gone to Mr. Li’s birthday party.
A. message B. text C. excuse D. notice
