— Have you read this book? — Yes. But that one is ________ worth reading.
— Can you come to a party on Saturday, Peter? — Oh, ______I'm already going out, I'm afraid. A. what a pity! B. don't ask! B. C. how come? D. so what?
Much time _____ sitting at a desk, office workers are generally troubled by health problems.
Schools should be lively places where individuals are encouraged to _____ to their greatest potential.
The number of smokers, _____ is reported, has dropped by 17 percent in just one year.
I’m so ______ to all those volunteers because they helped my terrible day end happily.