The letters for the boss ______ on his desk but he didn’t read them until three days later.
A.was put
B.put
C.has put
D.were put
网友回答
D解析试题分析:考查被动语态。本句的主语是the letters,与动词put构成被动关系,故使用过去分词的形式。句意:给老板的信被放在桌子上,但是知道3天以后他才看见。故D正确。考点:考查被动语态点评:被动语态的考查主要要与句子的语义串联在一起,要注意语法的统一。