分级读物 · A2 · EN
在学校帮忙
Mary helps clean the school.
A lost dog is found there.
Mary gives it water and food.
The dog wags and says thank you.
Helping others feels good.
共 3 题，就地核对答案，不记录分数，仅用于自测。
1. What does Mary help do?
2. What is found at the school?
3. How does Mary feel?
