--China a lot in the past 30 years of reforming and opening policy(改革开放政策). That’s righ

问题补充：

--China a lot in the past 30 years of reforming and opening policy(改革开放政策).

-- That’s right. Our life is honey now.

A. has changed, as sweet as

B. have changed, so sweet as

C. has been changed, as sweetly as

答案：

解析：句意：由于改革开放政策，在过去三十年中中国改变了很多。——不错，现在我们的生活像蜜一样甜。结合语境可知上文描述的是现在已经完成的动作，故用现在完成时态，句子主语中国是单数形式，故助动词用has，change是中国的自然变化，故不用被动语态。As adj as像……一样；so……as不如……。结合语境可知选A。