_____ 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
答
b
答
A
as is mentionged above:正如上面提到大一样...
答
d. it is mentioned above that...
it（形式主语） is + 过去分词+ that...( 真正的主语从句）
答
A
答
选B
as表示“这一点”