---Excuse me. Is the library open all day?
--- . Only from 8 a.m. to 4 p.m.
| A．Yes, of course | B．That’s right |
| C．Sorry, I’m not sure | D．Sorry, I’m afraid not |
---Excuse me. Is the library open all day?
--- . Only from 8 a.m. to 4 p.m.
| A．Yes, of course | B．That’s right |
| C．Sorry, I’m not sure | D．Sorry, I’m afraid not |
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