It is during his spare time ___ John has been studying a course in French.
得分：5分
A.when
B.that
C.which
D.what
出自：河北建筑工程学院-大学英语2

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10245403】个 (题库试题定时更新)