第19题: [单项选择]Chris's interest in his action-figure collection began to ______ as he completed elementary school and became a preteen; he was growing up. A. (A) improve B. (B) dilate C. (C) exist D. (D) wane E. (E) thrive 参考答案:D 答案解析:The context indicates that Chris was growing up, and therefore likely to lose interest in his action