It's an(a,an) useful and an (a,an) unusual record.(元音字母前用an) It's raining heavily (大) outside now (rain heavily 雨下的大) What's your weight (重)? (weight 表示体重) I know what a happy life is like (幸福生活是什么样的).
It's __an___(a,an) useful and _an___(a,an) unusual record. It's raining _heavily___ (大) outside now. What's your _weight___ (重)? I know what the happy life is about(幸福生活是什么样的).