1. Look at the sign. What does it mean? a. I'm going to visit my grandparents.
2. Don't put your bike here, Mike. b. "No littering!"
3. What can make our school messy? c. At the gate of the park.
4. Water is very useful. We should save it. d. Oh, sorry! I didn't see the sign.
5. Where can we put the poster, Tim? e. Yes, you're right.
6. Where are you going in winter holiday? f. Waste things like rubbish.
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