初中英语派生法选词填空

Our four﹣week Earth Camp is a fun and 　     　 summer camp for children aged 6 to15 Kids enjoy time outdoors while learning about the earth. （ education ）

A Christmas Carol was written to make every reader think about how they could make a 　   　 to their society. （ different ）

Soft music can help us fall 　　 faster and wake up less during the night. （ sleep ）

The earlier you travel 　   　，the better you can learn the lessons traveling can teach you. （ wide ）