So far we have done a lot to build a low-carbon economy but it is ideal (理想). We have to

问题补充：

So far we have done a lot to build a low-carbon economy, but it is ideal (理想). We have to work still harder.

A. next to

B. far from

C. out of

D. due to

答案：

A. next to

(答案→)B. far from

C. out of

D. due to

解析：这题考查词组辨析：next to几乎，在隔壁，far from 远非，一点也不，out of 出于， due to由于，句意是：到现在为止，我们已经做了很多来建立低碳经济，但一点都不理想，我们还要努力。选B。