题目内容：

It is said that a new swimming pool_____the old one will be build next year.
A.twice the size of
B.twice as bigger as
C.as twice big as
D.twice big than

优质解答

A.据说,明年将会建一个比过去那个游泳池大两倍的新游泳池.
...the size of 是固定的短语搭配.
其它的选项是起迷惑作用的,但事实上都不正确.