问题补充:
after a long walk, Mike called and said he couldn’t come to the party.
A. Having worn out
B. Being worn out
C. To wear out
D. Worn out
答案:
A. Having worn out
B. Being worn out
C. To wear out
(答案→)D. Worn out
解析:考查非谓语动词,句意为:长距离步行之后十分疲劳,迈克打电话说他不能来参加聚会了。Be worn out是精疲力竭的意思,这里用过去分词表示状态,在此句中表原因,Having worn out没有表达出be worn out这个词组,Being worn out表示和谓语动作同时发生的被动动作;To wear out不定式表示目的; D为正确答案。