After decades of effort, the city is still trying to _____ how to ban smoking in public places.

—Can you lend me some money?
—By all means．Can $10 ______?

—Why did you arrive late?
—The fog _____ our air flight for about half an hour.

A growing number of people are beginning to believe that learning new skills and knowledge _____ more promotion opportunities.

Once new difficulties _____ w.&w.^w.k.s.5*u.c.#o@m in our study, we should learn to use our brains to solve them.

.—When did you ________ to do the work?
—Two months ago, we are through 80% of it at the moment.

I tried my best to treat my son kindly , but he was so naughty that my patience ______at last.
A used up B got away C went down D gave out

Some parents are so protective that want to _____their kids from every kind of danger , real or imagined.
A spot B dismiss C shelter D distinguish

Much to my surprise , such a little boy could _____the puzzle.
A speak B settle C read D answer

Tony, mind your manners. Don’t _______ while others are talking.