16. As we all know, ______ most people like ______ nature because of the blue sky, the songs of birds and flowers.
A. the; the B. /; the C. the; / D. /; /
17. --- Do you mind if I keep pets in this building?
--- ______
A. I’d rather you didn’t, actually. B. Of course not. It’s not allowed here.
C. Great! I love pets. D. No, you can’t.
