___ has already been pointed out is that grammar is not a set of dead rules.A．As_刷题宝

题干

___ has already been pointed out is that grammar is not a set of dead rules.

A．As

B．It

C．What

D．Which

上一题下一题 0.64难度单项选择更新时间:2013-11-07 04:28:10

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