单项选择题


Questions 27—30

A． A friend of the man’s.
B． An air conditioning expert.
C． A scientist who set out the principles for internal combustion.
D． A professor who invented automobiles and airplane.
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单项选择题
A． I bit my tongue while speaking Spanish.B． I’m gradually improving my Spanish.C． I’m not taking enough Spanish classes during a year.D． I’ve been writing my notes in Spanish.
A． I bit my tongue while speaking Spanish.
B． I’m gradually improving my Spanish.
C． I’m not taking enough Spanish classes during a year.
D． I’ve been writing my notes in Spanish.
单项选择题
A． History.B． Chemistry.C． Astronomy.D． Mathematics.
A． History.
B． Chemistry.
C． Astronomy.
D． Mathematics.
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