问题
选择题
-How much is the pair of shoes?
-Twenty dollars ____ enough.
A. is B. are C. am
答案
答案:A
考查be动词的用法。根据文意,twenty dollars看成一个整体,表示单数概念,故用is。
-How much is the pair of shoes?
-Twenty dollars ____ enough.
A. is B. are C. am
答案:A
考查be动词的用法。根据文意,twenty dollars看成一个整体,表示单数概念,故用is。