Question

【题目】That sweater ________ be Carla’s. Only she wears such colorful clothes.

Answer 1

【答案】must

【解析】

句意：那件毛衣一定是卡拉的。只有她穿这么鲜艳的衣服。

根据“Only she wears such colorful clothes.”可知，这里是肯定猜测，这件毛衣一定是卡拉的，must一定，故答案是must。