Your pen________smoothly. Where did you buy it?

Have you prepared for the sports meeting which ___soon?

Thanks to the policy, birth rates in the country_____ 2 percent annually for the past five years.

With more forests being destroyed, huge quantities of good earth_______each year.

—Why don’t we choose that road to save time?
—The bridge to it __________.

Who would you rather __________ the report instead of you ?

It was a pity that he __________ blind, but to the joy of his family, his dream of becoming a musician __________ true at last.

-I give up．It’s too hard．
-Really? I______you could make it through．

-Did you attend Mary and Tom’s wedding ceremony?
-Yes，but as you know，they________each other no more than 3 months．

－Hi, I didn't know you had come back! Have you finished your teaching in America?
－Yes. I______Chinese there for more than two years.