People in some countries waste water______ people in others don’t have enough to drink.
The children are busy doing piles of homework, for they _______ their end-of-term exam soon.
When the powerful earthquake struck and all lights went out all of a sudden. It seemed _______ the world was at an end.
They told us it was the second time that the volunteers _______ the nursing home.
It keeps raining these days. We doubt _______ the sports meeting will take place as planned.
President Obama won the 2012 election over Romney and is once more in__ of the White House.