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39 a study commitioned by the Department of Agriculture showed that if calves exercise and associated with other calves, they will require less medication and gain weight quicker than do those raised in confinement. A associated with other calves, they will require less medication and gain weight quicker than do B associtated with other calves, they require less medication and gain weight quicker than C associate with other calves, they required less medication and wil gain weight quicker than do D associate with other calves, they have required less medication and will gain weight quicker than do E associate with other calves, they require less medication and gain weight more quickly than og的解释是：The first and last verbs in the series of verbs that describe the calves are in the present tense, so the two in the middle should be as well：the Calves exercise．．．associate．．．require．．．gain weight．Adverbs，not adjectives, describe how an action is carried out．These calves gain weight more quickly，not quicker, than other calves．The comparison is between calves and those (referring to another set of calves)；the verb do ungrammatically interrupts the comparison and should be eliminated．
但我想不通的是既然比较的是主语，为什么than后面没有加do，来表示those raised in confinement是和they(calves)这个主语作比呢？想不通啊，而且if后跟一般现在时,逗号后面应该是将来时才对啊。。。
请大家帮忙想想! | 
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发表于 2007-11-20 13:22:00
