32. She learnt both business and history, but she knows _____ of them well, though she can speak on _____ subjects in general.
Every minute is made full use of _______ our lessons.
Was it through Mary , ____ was working at a high school , _____ you get to know Tom ?
Mary couldn’t make herself _______ attention to because her classmates made so much noise.
He arrived here at noon, in the day, and he went out and came back in the day.
The time he has devoted in the past years _______ the disable is now considered ________ of great value.