We waited _______ for the bus.
-Is that hall big enough? We have at least 200 guests. -Sure. That's a hall which can __________400 people.
Mark needs to learn Chinese __________ his company is opening a branch in Beijing.
Nowadays the power of the wind is being __________ to generate electricity.
Winning the competition __________ his financial problems.
It makes __________ to fight for your highest attainable goal.