September 30 is the day_______which you must pay your bill

-year-old woman, who died of respiratoryfailure on Dec 6, was confirmed to have been carrying ____H10N8 virus

Lionel Messi, an Argentina soccer player, _______ the Ballond’Or award (金球奖) for five times.

The house cost_____ we didn’t buy it

____ with the size of the whole earth, thehighest mountain doesn’t seem high at all.