单选题 We are all for your suggestion that the trip ______. A. is to put offB. was put off C. should put off D. be put off
【正确答案】 D
【答案解析】[解析]该题考查的是同位语从句。句中suggestion要求其后的同位语从句的谓语动词用“(should) +动词原形”的结构。