二、用所给词的正确形式填空。（10分）
1. I have been (collect) stamps for two years.
2. Gina was the first one (start) and have been running for three hours.
3. Most people would agree that talking loudly in a library is ( polite ).
4. Would you mind (mend) your bike.
5. He enjoys (raise) money for the poor.
