2. 考研
  3. Plastic heart valves and other human "spare parts" have ______ possible many recent developments in surgery.

Plastic heart valves and other human "spare parts" have ______ possible many recent developments in surgery.

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问题 Plastic heart valves and other human "spare parts" have ______ possible many recent developments in surgery.
选项 A、made it
B、been made
C、made
D、become
答案C
解析 make后面可以跟带形容词的复合结构(make sth possible)，如果宾语太长，也可把形容问提到宾语前面；如果宾语是不定式或从句，需将宾语后移，用形式宾语填补，如：make it possible to do sth；make it possible that．．．；make possible+(较长)宾语。
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考研英语一

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