单项选择题
W: Well, this must be the National Library.
M: I guess so. Oh no! I don’t think it’s open today. Look. It says "Closed Tuesdays" .
W: Well, we’ll just have to come back tomorrow.
M: But we’re supposed to go on that tour tomorrow.
W: Oh. that’s right. I forgot all about it. How about the day after tomorrow then
M: It’s OK with me.
A. On Tuesday.
B. On Wednesday.
C. On Thursday.
D. On the weekend.