be动词填空 how much ----- the exercise book and the magazine?That ---_英语解答

be动词填空 how much ----- the exercise book and the magazine?That ------ninety dollars.
am is are应该填?

人气：194 ℃　时间：2019-11-16 11:43:35

解答

1.are 主语是后面的书和杂志,是复数,所以用are
2.is 主语是that,表单数,用is