Would you mind helping me to check out these three sentences? Thank you.

[heyuting]

If professors pay too much attention on doing researches, students probably will be neglected. Maybe professors are too busy to answer students' questions. Even worse, some professors may ask their assistants to teach students in the whole semester.

 

[billmcd]

If professors pay too much attention [STRIKE]on[/STRIKE] doing research[STRIKE]es[/STRIKE], students probably will be neglected. Maybe professors are too busy [STRIKE]to[/STRIKE] answering students' questions. Even worse, some professors may ask their assistants to teach students [STRIKE]in[/STRIKE] the whole semester.

b.

 

[emsr2d2]

If professors pay too much attention [STRIKE]on doing[/STRIKE] to research[STRIKE]es[/STRIKE], students [STRIKE]probably[/STRIKE] will probably be neglected. [STRIKE]Maybe[/STRIKE] Professors [STRIKE]are[/STRIKE] might be too busy to answer students' questions. Even worse, some professors may ask their assistants to teach students [STRIKE]in[/STRIKE] for the whole semester.

My suggestions are above.

 

[Alamshar]

My suggestions are above.

You've changed the meaning;

If professors pay too much attention to ​

research is not the same. The difference is small but there is a difference​