Li Na had managed to ______ in motion an upsurge(高涨)of students learning tennis across Asia.
He once remarked that "All happy families ________ one another, but each unhappy family is unhappy in its own way".
China has a good ________ for fighting against the flu with its careful and smooth organization.
Not knowing his address , she had some difficulty ________ his house.
Everything comes with ________price; there is no such _______ thing as free lunch in the world.
---- Flight 551 for Dallas ________. I must be off now. ------Have a pleasant trip then.