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

B. Two-thirds

(答案→)C. A half

D. A quarter

解析：本题考查分数比值的大小。通过对比可知答案选C。