II. 用所给词的正确形式填空。 1. Of the two girls, I find Lucy the _______ (clever) one. 2. Gold( 黄金 ) is ______ (little) useful than iron( 铁 ). 3. My sister is two years _______ (old) than I. 4. The boy is not so ______ (interesting) as his brother. 5. Dick sings _____ (well), she sings ______(well) than John.