He is really an excellent doctor and he is _____ to being an expert in this fieldA.in a wayB.by the wayC.on the wayD.under the way
网友回答
C解析短语辨析。in a way在某种程度上； by the way 顺便说说；on the way 在途中，正要成为；under the way在……方式下。句意：他是一个真正不错的医生，并且他正在成为这个领域的专家。故选C。