...they sat with their eyes covered so they could not see, and with their backs to other children, who were told to either stare at them or look away. Time and time again the results showed tha the children who could not see were able to.................(to notice-to tell-to reveal-to find) when they were being stared at.
I had chosen the verb to reveal but the book where I took the exercise from suggests to tell. Now, do you think my verb is totally incorrect in this case or might it work?
Thanks so much for your opinion.
'Tell' can mean know, judge, distinguish. That is how it is used here, and is therefore the correct choice. 'Reveal' is not appropriate.