Her grandfather________for two years.
— Look, the man looks like Mr Green. — It _________ be him, for he _________ to America.
— Have you finished your homework __________? — Yes, I’ve __________ finished it.
The terrible earthquake hit Japan __________ the afternoon _________ March 11th.
________ accident happened on the busy street because ________ driver drank too much.
--- How _______ is it from Xi'an to Dunhuang? --- It's less than 3 _______ flight.