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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

30. 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 do do

C. does does do                                         D. did do does 

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 do do

C. does does do                                         D. did do does 

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 do do

C. does does do                                         D. did do does 

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