题目

— George and Lucy got married last week. Did you go to their wedding? — No. I ____. Did they have a big wedding? A. was not invited       B. have not been invited   C. hadn’t been invited    D. didn’t invite 答案：C  解析: 一句逻辑关系判断，此处应该用被动语态。由题干内容可知，invite这一动作发生在got married及went to their wedding之前，故应该用过去完成时的被动语态。种植树木、花卉能美化环境是因为A.生物适应环境B.生物影响环境C.环境影响生物D.生物和环境相互影响