注意：此页面搜索的是所有试题
题目内容
（西安石油大学英语二）
30. (单选题) Doctors are now able to cure people of some diseases which in former time _____. ( )(本题1.0分)
A、 had killed them
B、 must kill them
C、 should kill them
D、 would have killed them
A、 had killed them
B、 must kill them
C、 should kill them
D、 would have killed them
参考答案