these能像that那样指代上文提到的同种类型的事物吗？是不是单数用that，复数用those？

Question

The desks of this room are as large as _____________.
A. those of that room B. that of that room
C. it of that room D. that room

Answer 1

选A。
that做指示代词时，其复数形式就是those.但是当that做引导词的时候，就只能用that原型。
在这个问题当中，用的是指示代词。注意这里是代词，所以指代的是the desks.是复数。所以我们在后面的时候也用复数。

但是，看例子。 The desk of this room is as large as that of that room! 自己好好琢磨一下。望懂

Answer 2

选A。
你说得对，that做指示代词时，其复数形式就是those。