Question

【题目】Having been ill in bed for nearly a month, he had a hard time __ the exam.

A. passB. to pass

C. passedD. passing

Answer 1

【答案】D

【解析】

考查非谓语动词。句意：由于卧病在床将近一个月之久，他非常艰难地通过了考试。have a hard time doing表示“做某事有困难”，故D项正确。