—Is there any possible way to help them get rid of such a bad habit?
—To tell the truth, it’s very hard. But we ________ on this problem, trying to improve the situation .

I was just going to cut my rose bushes but someone _______ it. Was it you?

According a recent survey, if the factory closes, a lot of people _______ their jobs.

What’s the time?  My watch _______.

— Are these seats available?
— Sorry, sir. The seats _____.

You have no chance of getting the position. I’m afraid you _____ your time if you apply for it.

I feel so excited! At this time tomorrow, I ________ by camel with local guides in Northern Africa.

Some amazing people _______ our world for the better in the past 100 years.

I was trying to pick up my hat that __________ off in the wind, but failed at last.
A. had been blown       . is blown       C. blown              D. it had been blown

This kind of glasses manufactured by experienced craftsmen ______ comfortably.