Creating world peace is a rather difficult goal, ____ calls for efforts of many generations.
—What do you think of _________ basketball match between our school and your school?—The result was really _________ surprise to me. We were beaten.
__________ in the restaurant for half an hour, I suddenly realized I had left my wallet at home.
The young man, __________ abroad for two years, decided to go back to his motherland.
Tom returned from the manager's office, __________ me that the boss wanted to fire me.
__________ the task, they had to stay in the lab for another two hours.