29. Electricity has become a daily necessity. Its shortage may result in many inconveniences.___________ sufficient electricity for daily conveniences, we must find different ways to generate power.
(A) Having had
(B) Without having
(C) To have had
(D) Having not

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統計： A(3), B(46), C(20), D(9), E(0) #1028941

詳解 (共 2 筆)

#6265885
電力已成為日常必需品。它的短缺可能會帶來...
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#6008716

主句是「we must find different ways to generate power」，意思是「我們必須找到不同的發電方式」。條件句是「without having sufficient electricity for daily conveniences」，意思是「如果沒有足夠的電力來滿足日常生活的需求」。

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