题目内容：

这是2个动词填空的题目1———his work ,he had to work extra hours (finish)
2——-his work caused him to work extra hours at night(finish)

优质解答

1.Having finished ,his work ,he had to work extra hours (finish).因为finish的逻辑主语和句子主语一致而finishi his work 发生在 work extra hours 之前.所以用完成时的ing形式做状语.2.Finishing his work caus...