注意:此页面搜索的是所有试题
题目内容
(延安大学—大学英语3)
(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
A、 lose
B、 lost
C、 cost
D、 last
参考答案