_____ is mentionged above that the number of the students in senior schools is increaaing.A.whichB.asC.thatD.it

问题描述:

_____ is mentionged above that the number of the students in senior schools is increaaing.
A.which
B.as
C.that
D.it

b

A
as is mentionged above:正如上面提到大一样...

d. it is mentioned above that...
it(形式主语) is + 过去分词+ that...( 真正的主语从句)

A

选B
as表示“这一点”