根據(jù)句意及漢語提示完成單詞。
1. This suit is out of style, _______ (然而) , I like it very much and often wear it.
2. We're doing something to make our city clean, so there will be less _______ (污染) in the future.
3. My grandfather lives _______ (孤獨地), because my parents are so busy that they don't often go
home to see him.
4. It is _______ (不可能的) to learn English well in a day.
5. I don't think l will _______ (失敗) in the math test. I can pass it.
