It is known to all that every minute _____ full use of ______ the lessons will benefit students a great deal.
Tom is senior _______ most other students in our class .
It was _____ he came back from Africa that year _____ he met the girl he’d like to marry.
Iraq has _____ too many wars, making people ______ a lot.
--- Have you _____ him to give up the job?--- Yes, I have. But he doesn’t listen to me.
Many questions ________ at the meeting, but he answered none.