She opened all the windows _____she could take a bit more of fresh air.
Mary heard somebody call her, so she turned _______to see who it was..
—Is this _______notebook? —No, it isn't_________.
There is _______report in today's newspaper. It's about_______sports meeting that will be held in Weihai.
—What happened to Billy? —He________because of his drink-driving.
—We're doing a lot to protect our environment, but it is not good enough. —So we should try______ to look after it.