题目内容
12．The manager was satisfied to see many new products ______ after great effort．（ ）| A． | having developed | B． | to develop | ||
| C． | developed | D． | develop |
分析 经理看到很多新产品经过不懈的努力（质量）得到了改善，感到很满意．
解答 答案：C
本题考查过去分词的用法．see+sb/sth+非谓语动词，表示看到某人做某事或被怎样．题干中products与develop之间构成被动关系，要用过去分词．故填C．
点评 感官动词（see，notice，hear，feel等）后接名词，再接非谓语动词是一类很重要的句型．判断用什么样的非谓语动词（省略不定式符号的动词不定式；现在分词；过去分词）要根据动词与名词的关系，主动用不定式（表示做了某事），现在分词（正在做某事）；被动要用过去分词．
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