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

问题补充：

In my opinion, all Mr Li good to his students in his class at present. He is very strict with them in their studies.

A. does does does

B. does does do

C. does do did

D. did do does

答案：

A. does does does

(答案→)B. does does do

C. does do did

D. did do does

解析：考查定语从句和强调句型。All是先行词，all后面省略了that，that作为does的宾语。第一个does是定语从句的谓语动词。第二个does表示强调，强调do。句意：在我看来，李先生坐的所有事情的确对他班里的学生有好处，在学习方面对学生很严格。故B正确。