问题
选择题
---Who is making so much noise?
---___ the children.
A．There are
B．They are
C．That is
D．It is
答案
D
题目分析：句意：--谁在制造那么大的声音?—是那些孩子们。这里答语是省略句，完整的是It is the children that is making so much noise.这是强调句型，其结构是It was+被强调部分+ that+其他，判断强调句型的方法是把It was that去掉整个句子不缺成分，是成立的。故选D。
考点：