---It’s a pity that the trees are going to die.more attention they could have grown b

问题补充：

---It’s a pity that the trees are going to die.

--- more attention, they could have grown better.

A. Giving

B. Given

C. To give

D. Give

答案：

A. Giving

(答案→)B. Given

C. To give

D. Give

解析：考查过去分词做状语：句意：--很遗憾这些树就要死了。--如果给予更多关注的话，那些树可能会长得更好。因为the trees和give是被动关系，用过去分词做状语，这里也有虚拟语气的含义，这些树没有得到更多的关注，所以长得不好；选B。