---Remember to turn off the lights before leaving the classroom, children.
--- .
| A．OK, we will | B．Yes, we do |
| C．It doesn’t matter | D．You’re right |
---Remember to turn off the lights before leaving the classroom, children.
--- .
| A．OK, we will | B．Yes, we do |
| C．It doesn’t matter | D．You’re right |
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