—How was your recent trip to Sichuan?—I've never had ________ one before.
The book-store _____ open until 8 at night every day.
This task is _____ for us. We need ______ people.
She wants very much to improve her _______.
_____ New York _______ London are two of the largest cities in the world.
______ met, it won’t be easily forgotten.