To keep healthy, Professor Johnson _______ cycling as regular form of exercise after he retired.
You have seen Helen in her office this morning because she’s been out of town for two weeks.
in 1898, Beijing University is one of the top universities in China.
There is no doubt they will give me a hand if I have any trouble.
There is still much to discuss. We shall, ______, return to this at our next meeting.
Dr Yuan Longping grows _____ is called super hybrid rice, _____ has a high output.