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【高二语法】The experiments Dr.James Bond has devoted all his time

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【高二语法】
The experiments Dr.James Bond has devoted all his time to ________ successful.
A.prove B.proving C.proved D.be proved
【高二语法】The experiments Dr.James Bond has devoted all his time
应选C.这个句子的主干是The experiments proved successful.Dr.James Bond has devoted all his time to 是定语从句,修饰主句的主语the experiments.这个定语从句省略了引导词that或 which.这个引导词因为作"devoted all his time to"的介词to的宾语而省略.詹姆斯.邦德博士花费他所有的时间去做的实验是成功的