---Excuse me，sir．This is a non-smoking room．
---Oh，sorry．I the sign．
| A．don’t see | B．didn’t see |
| C．won’t see | D．wasn’t see |
---Excuse me，sir．This is a non-smoking room．
---Oh，sorry．I the sign．
| A．don’t see | B．didn’t see |
| C．won’t see | D．wasn’t see |
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