If nothing________,the oceans will turn into fish deserts.
When the old woman died, it___ that she was actually very rich.
—I have a favour to ask of you. —______.
It’s reported that a bus went out of ____ control on a highway _____ east of the city and crashed into a river.
Medicine depends on other fields for basic information, particularly some of their specialized branches.
Many fine cooks insist on ingredients of the highest quality.