of the teachers in our schoolwomen.A. Two thirds areB. Two threes isC. Two third areD.

问题补充：

of the teachers in our schoolwomen.

A. Two thirds, are

B. Two threes , is

C. Two third, are

D. Two thirds , is

答案：

(答案→)A. Two thirds, are

B. Two threes , is

C. Two third, are

D. Two thirds , is

解析：分数在英语中通常是借助于基数词和序数词来共同表达的。其中基数词表示分子，序数词表示分母。分子超过1，分母要加s.分数修饰名词时，若该名词是不可数名词只能用单数；若是可数名词，用单数或复数均可。但是，若它们在句子中作主语，则谓语动词是用单数还是复数取决于名词，即与分数所修饰的名词保持一致。