When _______ there, the postman found the door locked and then stopped _______ t

题型：不详难度：来源：

When _______ there, the postman found the door locked and then stopped _______ the letter in the mailbox on the wall.

A．reaching; putting	B．reached; to put
C．reaching; to put	D．reached; putting

答案

C

解析

考查非谓语动词。句意：当到达那儿时，邮递员发现门锁着，然后停下来把信投入墙上的邮箱里面。现在分词表示主语正在进行的伴随性动作，stop后接不定式表示停下来去做某事，接动名词表示停下正在做的动作。结合语境可知选C。