单选题
When we have difficulty ______ obtaining desired objects or reaching desired goals we experience negative emotions such as grief and anger.
【正确答案】
B
【答案解析】[解析] 句意：当我们得不到想要的东西或达不到期望的目标时，我们就会体验到一些消极的情绪，比如悲伤和愤怒。固定搭配题。have difficulty (in) doing sth. 为固定搭配，意为“做某事有困难”。其中in可以省略。