---Tell Jack I will wait for him at the school gate.---______he doesn’t come?
If you don't want to set fire __________ the ship,__________ your cigarette.
-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.