句子(15分)：
1. ______ ________(面临) a difficult situation, Tom decided to ask his boss for advice.
2. He became famous _______ _________ _________.(40多岁)
3. People in Chongqing are proud of _______ _______ ________ ________ (所取得的成就)in the past ten years.
4. we can give money to _______ ______ _______ ________ ______ (使饮水安全).
5. Always leave things ________ _______ ________ _______ ________ _________.(你能再找到它们的地方)