题目内容：

It was 1.(extreme) cold last Monday morning. While I was walking on my way to school, I noticed two street2. (clean) sweeping the street, across 3.I walk every day. Seeing them 4.(work) so hard on such 5. cold morning, I was moved and made up my mind to do something for them. After arriving at school, I discussed with some classmates6. we could do. The next day, we got up early and prepared porridge at home. When we handed them the hot porridge and expressed our appreciation for 7.(they)hard work, they looked a little 8.(surprise) at first. And then they took the porridge, grateful 9. our kindness. Although it was very cold, we all 10.(feel)warm at that moment.