填空:
—How much ____ the sweater?
—Nine dollars.
—How much ____ this pair of trousers?
—Nine dollars, too.
—And how much ____ the shorts?
—$16.
—Oh, so expensive!(这么贵!)
答案
is,is,are
知识点:主谓一致

第一个空the sweater是单数,需要用is;第二个空虽然“trousers”用的是复数形式,但主语是this pair of trousers意思是“这条裤子”,表达的是整体的概念,同样要用is;第三个空the shorts意思是“短裤”,由于暗含的是“两个裤腿”,所以要用are。

略
