题目内容：

 

1. You are welcome to join our _______. You can have a lot of fun here.(篮球俱乐部)

2. Let’s build ________ to make our mother earth healthy and clean.(绿色城市)

3. We can enjoy fresh air when we ______ in the countryside.(去钓鱼)

4. I’m trying to sleep. Would you mind ______ the music? (调低)

5. When we are in trouble, we should face the challenges _____ worrying about our problems.  (代替)