The life-saving drug invented in 1897, which ________ aspirin, has helped increase the standard of people's health greatly.

题型：单选题题类：常考题难易度：普通

江苏省扬州市2017-2018学年高二下学期英语期末考试试卷

A、was called B、is called C、has been called D、had been called

举一反三

It is thought that by 1998 there were only six to nine wild Siberian tigers living in the remote region.

仿写6：人们认为中国学生表演的哈姆莱特这部剧很成功。（put on）

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