--There are forty-eight students in our class. --___________.
Can you imagine________?
He lost his key.It made him________in the cold to wait for his wife’s return.
—What would you do if you had one million dollars? —I would________to the medical research.
—Your tea smells great! —It’s from India.Would you like________?
The World Health Organization has given some advice on________to protect us from being infected(感染)with H7N9.