问题
Excuse me, sir. Is the swimming pool open during the daytime– . Only from 6:00 p.m. to 10:00 p.m.
A:That's right
B:Yes, of course
C:Sorry, I'm afraid not
D:Sorry, I am not sure;
B:Yes, of course
C:Sorry, I'm afraid not
D:Sorry, I am not sure;
正确答案是：
