题目内容：

阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写一个适当的词，在给出提示词的空白处用括号内所给词的正确形式填空。

A week before Earth Day, posters1. (put) up around our school, calling upon us to join in the actions for a greener earth.

Our class came up with the idea2. (make) better use of used materials. We brought to our classroom worn-out clothes, pieces of cardboard and empty plastic bottles and turned those into dolls, handbags, tissue boxes and small vases. That weekend, we went to a nearby neighbourhood and gave them away to the people there. All were very happy with those 3. (expect) gifts, especially little kids and elderly people. We did so well that we were invited to share our ideas and experience with all the students of our school.

We are very proud of 4. (we) and believe we can do more for a better world.