In my opinion all Mr White good to his students in his class at present. He is very stri

问题补充：

In my opinion, all Mr White good to his students in his class at present. He is very strict in their study.

A. does does does

B. does did do

C. does does do

D. did do does

答案：

A. does does does

B. does did do

(答案→)C. does does do

D. did do does

解析： Mr White does为定语从句修饰all；后为强调形式does do。