Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
There's absolutely no（ ）between the different groups—nobody knows what anyone else is doing. (coordinate)
【正确答案】：COORDINATION
【题目解析】：
本题考查的是常用动词的名词形式。
由no可知，空缺处应填名词，coordinate的名词形式是coordination意为“协作”，符合句意。
句意：不同的小组之间完全没有任何协作，因而没有人知道别人在做什么。