Question

       all day, I went to bed early.

A．Working hard

B．Worked hard

C．Having worked hard

D．To work hard

Answer 1

C

考查非谓语动词用法。根据句意可知work与I构成主动关系，并且是在上床睡觉之前就已经完成了，所以使用现在分词的完成式。句意：经过整天的努力工作以后，我很早就上床睡觉了。