—Which is the biggest number of the four?—A. One-thirdB. Two-thirdsC. A halfD. A quarter

问题补充：

—Which is the biggest number of the four?

—．

A. One-third

B. Two-thirds

C. A half

D. A quarter

答案：

A. One-third

(答案→)B. Two-thirds

C. A half

D. A quarter

解析：One-third三分之一；Two-thirds三分之二；A half一半；A quarter四分之一。句意：这四个当中，哪个是最大的数字？根据比较可知选B.