Many new oilfields______ up one after another in our country.<br />A.open<br>B.has opened<br>C.will be opened<br>D.is being opened

Many new oilfields______ up one after another in our country.
A.open
B.has opened
C.will be opened
D.is being opened

出自：国家开放大学英语语法

提示：
每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10253414】个 (题库试题定时更新)