问题
选择题
Nowadays _______ of business letters ______ in English.
A two third, writes B. two thirds, is written C. two thirds, are written
答案
答案：C
题目分析:表达分数时当分子大于一时，表示分母的序数词用复数形式。复数的三分之二还是复数，故谓语动词用复数形式。
点评：表达分数时，当分子大于一时，表示分母的序数词用复数形式；当分子是一时，分母不加s。