---______________?
A. Oh, I see
B. Here it is
C. It's over there
D. Yes, of course
---_______________?
A. Go on, please
B. Two dollars
C. Sure, I will
D. Here you are
---_______________?
About 150 years ago
B. About 115 years ago
C. About 120 years ago
D. About 100 years ago
---_____________________?
A. Boring
B. Difficult
C. Interesting
D. Satisfactory