The Apirport Railway has been ____mid-1998.A.operating B.operate C.operated D.to perate为什么选C,请具体说明

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/28 15:24:55
TheApirportRailwayhasbeen____mid-1998.A.operatingB.operateC.operatedD.toperate为什么选C,请具体说明TheApirport

The Apirport Railway has been ____mid-1998.A.operating B.operate C.operated D.to perate为什么选C,请具体说明
The Apirport Railway has been ____mid-1998.A.operating B.operate C.operated D.to perate
为什么选C,请具体说明

The Apirport Railway has been ____mid-1998.A.operating B.operate C.operated D.to perate为什么选C,请具体说明
C 过去完成
这条铁路从1998年年中就已经开始运转了
过去完成时态
has been+过去分词

c