单项选择题
A.Over there. B.On the fourth floor. C.On the fifth floor. D.On the first floor.
A.They’ll finish their examination. B.They’ll have their Christmas vacation. C.They’ll visit their friends at college. D.They’ll study at a college.
A.Because Dr. Johnson is busy tomorrow. B.Because Dr. Johnson won’t come to his surgery tomorrow. C.Because Jack is on duty tomorrow. D.Because Jack is busy tomorrow.