His theory___to be true. A.proved B.was proved C.is proved D

His theory___to be true. A.proved B.was proved C.is proved D His plan ____to be a perfect one.A proved B.was proved C. is 选哪个,请给出原因.A.proving B.proved C.was proved D.has been proved 一：Their plan ____ to be a perfect one.A.proved B.was proved选 ______ was his advice that it proved to be worthless. His theory proved to be right. As it happened,my advice _____to be wrong.A.proved B.was pro proved to be用法 my adviece proved to be correct my adviece was proved to be 1、He proved himself a true gentleman and the beauty of his _ he proved himself a true gentleman 这一句中为什么不在 a 前加 is B.proved C.having been proved 这俩的区别 为什么选B