They ___several schools in the past five years.A.started B.have started C.were starting D start

分类: 作业答案 • 2022-01-14 16:24:18

问题描述：

答

选B,句意是在过去的五年里,他们建设了几所学校.应该用现在完成时态,结构是have/has +动词的过去分词