We entered the café and sat down by the window, waiting .A. to serveB. to be servedC. serv

发布时间：2020-08-17 09:58:45

We entered the café and sat down by the window, waiting     .
A. to serve
B. to be served
C. serving
D. served

网友回答

A. to serve
(答案→)B. to be served
C. serving
D. served
解析：答案：B　考查非谓语动词。根据句意，句子主语We与非谓语动词serve之间存在被动关系，且serve的动作尚未发生，故使用不定式的被动形式。
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