Which do you enjoy _____ your summer holiday,going to Tibet or going to Dalian?
A new stadium _______ next year, for an international tennis game will be held in this city.
Noise is unpleasant, ________ when you are trying to sleep.
It's quite warm here; we ________ turn the heating on yet.
Close the door of fear behind you, and you ____ the door of faith open before you.
Sarah made ______ to the airport just in time to catch her plane this morning.