og11 Verbal 72 关于than的省略

这道题所有的都补错了

我觉得补对了的话，不能算错，虽然两个动词但是两个是并列的而且时态一样

补助动词呀

A) associated with other calves, they will require less medication and gain weight quicker than do  补will

B) associated with other calves, they require less medication and gain weight quicker than

C) associate with other calves, they required less medication and will gain weight quicker than do 补did如果过去时的话

D) associate with other calves, they have required less medication and will gain weight more quickly than do 补have如果完成时的话。当然问题在于选项里是错的，两个动词时态也不一致

E) associate with other calves, they require less medication and gain weight more quickly than