Question

--- How many students are there in your class? --- Forty，and ________ of us are girls.

A．three fifths

B．three fifth

C．third five

D．third fifths

Answer 1

A

解析試題分析：句意：你們班上有多少學生？40個，五分之三是女生。分數的表達，分子用基數詞，分母用序數詞，如one third1/3；當分子大于一時，分母要用復數形式，如two thirds；結合題意故選A。
考點：考查分數的表達。