单选题 When we have difficulty ______ desired objects or reaching desired goals we experience negative emotions such as grief and anger.
A. at obtaining B. in obtaining
C. on obtaining D. with obtaining

【正确答案】 B

【答案解析】本题测试固定结构。have difficulty(in)doing...意为“做……有困难”。本句大意为：当我们难以得到向往的东西或达到目标时，往往会经历诸如悲伤、痛苦等情绪。