Do you know Hawking does not like about his speech computer?
Don't rush. There's still ______ time left.
-----Do you know if the old man is still living?----- I'm sorry. He _________. He ______ for two months.
Silk ________ in _______ China.
_______ it goes on, hour ________ hour.
The headmaster _________ a noisy boy from the library.