以下句子哪个是观点性句型?

以下句子哪个是观点性句型?
A、It is, therefore, evident that the task of … requires immediate attention.
B、To improve college entrance examination system, I suggest the following steps. to/draw the conclusion that…
C、To eradicate this tumor of society, two measures might be involved/have to be taken immediately.
D、In my opinion, the real implication of the author is that …
【正确答案】：D
【题目解析】：考察句型应用. D选项In my opinion, the real implication of the author is that …在我看来作者真正意图是....是观点性句型. 其余的是建设性句型. 故选D.