-Why were the workers so happy?-Because they a new oilfield in the area last week.A. invented B. helped C. discovered C [解析]句意:---工人们为什么这么高兴?---因为他们上周在这个地区发现了一个新油田.A. invented发明.创新,B. helped帮助题目和参考答案——青夏教育精英家教网—

题目内容

—Why were the workers so happy?

—Because they ______ a new oilfield(油田) in the area last week.

A. invented B. helped C. discovered

C 【解析】句意：---工人们为什么这么高兴？---因为他们上周在这个地区发现了一个新油田。A. invented发明，创新；B. helped帮助； C. discovered发现。结合句意和选项可知选C。

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