新概念英语(二)状语从句语法练习601. After the war,a new school building was put up _ there had once been a theatre. A. that B. where C. which D. when2. _ he took part in the competition, he won a second prize. A. For the first time B. At a time C. At one time D. The first time3. I would appreciate it _ you call back this afternoon for the doctors appointment. A. until B. if C. when D