__ ______ do you think of the book written by Dr. Wang? — In my opinion, it is not very interesting.
The school rules state that no child _____ out of the school, unless accompanied by an adult.
He tried hard to keep calm in face of the policemen, but the sweat on his forehead _________.
I’m moving to the countryside because the air there is much fresher than _______ in the city.
We are invited to a party __________in our club next Friday.
By the time Jack returned home from England, his son __________from college.