With his eyes ______ on the family album, he thought of the fun he had when he lived with his parents.
The chairman thought necessary to invite Professor Smith to speak at the meeting.
The ability _____ an idea is as important as the idea itself
—What do you think we can do for our aged parents? —You ____ do anything except to be with them and be yourself.
— Have you got any particular plans for the coming holiday? — Yes, _____, I’m going to visit some homes for the old in the city.
Eye doctors suggest that a child’s first eye exam____at the age of six months old.