It is the prevention of disease ______ its successful treatment that has led to the rapid increaseof the world’s population.[ ]

__________ doyou cook for your family —Sorry, never.

I want to know book it is.—Oh, it’s Xiao Wang’s.

Have you heard of ______ news The price of______petrol()is risingagain.

Did Tom win the 200-meter race at our sports meet? —Of course not. I’m a poor runner and he did _______ than I.