【急】SAT上的一道题,求牛人指导.求牛人指导：The bactrian camel is welladapted to the extreme climate of its native mongolia,having thick fur tand underwool that 【keeps】 it warm in winter and also insulate against summer heat.这
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【急】SAT上的一道题,求牛人指导.求牛人指导：The bactrian camel is welladapted to the extreme climate of its native mongolia,having thick fur tand underwool that 【keeps】 it warm in winter and also insulate against summer heat.这
【急】SAT上的一道题,求牛人指导.
求牛人指导：The bactrian camel is welladapted to the extreme climate of its native mongolia,having thick fur tand underwool that 【keeps】 it warm in winter and also insulate against summer heat.这个里面的keeps为什么错?
【急】SAT上的一道题,求牛人指导.求牛人指导：The bactrian camel is welladapted to the extreme climate of its native mongolia,having thick fur tand underwool that 【keeps】 it warm in winter and also insulate against summer heat.这
就看keeps it warm in winter and also insulate against summer heat这段
有and说明是平行结构,那么and前面连接的东西时态跟结构都要一致,那么and后面的动词是insulate,并没有加s,所以前面的keep也不用加s
应该是having thick fur and underwool 这个是两个主语所以应该是keep