第5题: [单项选择]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 参考答案: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。