—I don’t think I’ll be able to go mountain-climbing tomorrow.— ?
The population of China ________ 1.3 billion,and 80% of the population________farmers.
They are quite different ________ each other ________their tastes.
He ________to come at eight, but in fact he never comes before nine.
Mr. Smith is ________a teacher. He is also our good friend.
The visiting group ________ famous football players.