in my opinion all mr white______good to his students in his class at present.he is very strict in th

题目

in my opinion all mr white______good to his students in his class at present.he is very strict in their study.
A did does does B does did do C did does do D did do does
选B 谁给我仔细解析下 懵了

答案

正解是C
all 后跟了一个定语从句 all (that ) Mr.white did
主句谓语 是do good to ,用does do good 表示对谓语动词的强调.
翻译,在我看来,怀特先生以前做的一切目前对他班上的同学很有好处.