题目列表(包括答案和解析)
Recently people have made great progress in using ______ power of nature to produce ______ electricity.
A. a; the B. / ; / C. the; / D. a; an
Recently people have made great progress in using ____ power of nature to produce____ electricity.
A. a; the B. /; / C. the; / D. a; an
Recently people have made great progress in using ____ power of nature to produce____ electricity.
A. a; the B. /; / C. the; / D. a; an
Recently people have made great progress in using ________ power of nature to produce ______ electricity.
A. a; the B. /; / C. the; / D.a; an
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