of the class finished the homework already.A. Two third, hasB. Two thirds, haveC. Two thir

of the class finished the homework already.
A. Two third, has
B. Two thirds, have
C. Two thirds, has
D. Second threes, have

A. Two third, has(答案→)B. Two thirds, haveC. Two thirds, hasD. Second threes, have解析：英语中一般用基数词表示分数的分子，用序数词表示分数的分母。当分子是一时，分数的分母用单数形式，在表示分数时，当分数的分子大于一时，分数的分母要用复数形式。句意：这个班的三分之二的人影完成了作业。根据分析可知选项AD结构有误，本句主语the class为单数形式，故选B。

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