【题目】Laura was away in Paris for over a week. When she got home, there was a pile of mail _______ for her.
A.waited
B.to wait
C.waiting
D.was waiting

【答案】C
【解析】考查非谓语动词。在There be 句型中，名词mail 和 wait 是主动关系，所以用现在分词做定语，表示正在进行。句意：劳拉去巴黎待了一周多。当她回到家的时候，家里有一大摞邮件在等着她。选C。