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It’s clear__________ that a hard working student has___________ a great interest in science.

A. 不填; discovered                  B. 不填; developed

C. that; invented                    D. that; developed

B


解析:

It is clear that+从句是固定的句型,所以第一个空不用填任何词。Develop 表列:“发展”;discover表示“发现”;invent表示“发明”,只有develop符合题意。

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