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單項(xiàng)選擇題

Professor White contributed a lot to our community,（）

A.teaching, writing, and lecturing
B.teaching, writing, and a lecturer
C.a teacher, a writer, and lecturing
D.teaching, lecturing, and a writer

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單項(xiàng)選擇題

Professor Smith promised to look（）my paper, that is, to read it carefully before the thesis defense.

A.after
B.over
C.on
D.into

單項(xiàng)選擇題

Pleased to meet you! ―（）

A.Pleased to meet you ,too.
B.How do you do?
C.I've heard about you.
D.The pleasure is mine

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