Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
The unexpected failure really brought us much （ ） . (frustrate)
【正确答案】：FRUSTRATION
【题目解析】：
根据上文brought us much，bring sb. sth.，much是修饰词，修饰后面的名词，所以空格处要填名词的形式。frustrate的名词的形式为frustration沮丧，且符合句意。句意：意外的失败确实给我们带来了许多挫折。