1 .        , when Marx was already       , he found it was important to study the situation in Russia, so he began to learn Russian.

A．In 1870s, in his fifties	B．In 1870s, in fifties
C．In the 1870s, in fifties	D．In the 1870s, in his fifties

2 . Most of the doctors in this hospital were born         , and they are         now.

A．in the 1970; in their fifties	B．in 1970s; in the fiftieth
C．in the 1970s; in fiftieth	D．in the 1970s; in their fifties

3 . He looked quite healthy though he was        .

A．in seventy

B．in his seventies

C．at seventies

D．at the age of seventy

4 . Two         students          to the opening ceremony last Friday.

A．hundreds; were invited	B．hundred; were invited
C．hundreds of; invited	D．hundred of; invited

5 . I lived in______yesterday.

A．303Room	B．Room303
C．Room 303rd	D．The 303 Room

6 . In her，_____she began to take up writing.

A．forties	B．fourties
C．fortieth	D．fourtieth

7 . The old professor still works hard though he is _________.

A．in his sixty	B．in his sixties
C．in sixties	D．in the sixty

8 . 假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧）,并在其下面写出该加的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线,并在该词下面写出修改后的词。
注意：1.每处错误及其修改均限一词;

2.只允许修改10处,多者（从第11处起）不计分。

Last week,I attended a lecture by a teacher in his thirty. He was energetic and confidence. He spoke very fast and I could understand that he said. He mainly focused at how to learn the English well. In addition,he showed us how to write neatly, letter by letter. He kept telling us, “Slow down!” “Trusting yourself!” “Write carefully!”. To be honest, I never thought much of writing until today, when my heart touched. At the end of the lecture, all the people present break into cheers. The lecture was so interesting that I benefited a lot from them.