---- Who is it that is making so much noise upstairs?
---- the students preparing for the New Year’s Party.
A. There are
B. They are
C. It is
D. That is
网友回答
A. There are
B. They are
(答案→)C. It is
D. That is
解析：考查强调句型。It is the students preparing for the New Year’s Party.后面省略了who are making so much noise.句意： —到底是谁在楼上弄出怎么大的噪音？—是为元旦晚会做准备的学生。