【单选题】How is it ______ your roommate's request and yours are identical?
【判断题】“光触媒”是以二氧化钛为代表的具有光催化功能的光半导体材料的总称。
【单选题】. His mind _____, little tom missed the point.
【简答题】A.run B.running C.wander D.wandering
【简答题】A searching B strolling C crowding D wandering
【单选题】—How beautiful your skirt is! —________.
【简答题】_________ [A] searching [B] strolling [C] crowding [D] wandering