B: No, we didn't. It was difficult problem we had never met.
— Yes, She was __________ famous writer and translator(翻译家).
—Me too.
—Wow! What expensive present!
—Yes, she is Mary. She plays_______ piano very well.
— Sure. She's my mother.
— This way, please.
— Yeah, we had a great time there.
— Yes, It is _______ amazing cartoon film.
—It has ______population of 1.4 billion.