随堂演练即时体验 巩固提升 ⅰ.单句语法填空(不多于3个单词) 1．the problem ________ (discuss) at the last meeting is of great importance. 答案与解析 discussed 由problem和discuss之间的关系可知用被动形式。而由the last meeting可知discuss动作已完成，故用其过去分词形式。 2．those who have developed hobbies never need to worry about ________ to do with their leisure hours.
