5. (单选题) His father was ______ in thought and did not hear the door open.(本题3.5分)
A、 lose
B、 lost
C、 cost
D、 last
出自：延安大学大学英语3(专升本)

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)