Mr. Chen is an experienced teacher; he _____ for twenty years.

By the time you graduate, I ____ here for five years.

I see you're busy right now, Sue. As soon as you _____, I'd like to talk to you for a few minutes.

The umbrella is not a new invention. The Chinese _____ umbrellas in the eleventh century BC.

For thousands of years, people ____ that no two people have the same fingerprints.

I _____ many European countries, such as Italy, Germany, and Denmark.

Since I  _____  from the university, I have lost contact with all my classmates.

Due to global warming, temperatures on average _____ all over the world.

As soon as the light turned red, Monica _____ her car.

I found I had lost my voice when the baseball game was over. I _____ and cheering throughout the game.

Sorry, I  missed your call, but when you called, I _____ a shower. I didn't hear the phone ring at all.

The growth of public television in the past two decades _____ dramatic. (96學測)

It's a pity that you have to leave so soon. I sincerely hope that you ____ back very soon. (96學測)

The Chinese and Indians _____ green tea for at least 4000 years to treat everything from headaches to depression. (97學測)

Art Fry remembered a kind of glue developed by a colleague that everyone thought ____ a failure because it didn't stick very well.  (98學測)

Columbus brought the pineapple, along with many other new things, back to Europe with him. From there, the tasty fruit _____ throughout other parts of civilization. (98學測)

The government _____ its best to preserve the cultures of the tribal people for fear that they soon die out. (99學測)

The children were so delighted to see the clown appear on stage that they laughed, screamed, and ______ their hands happily.  (100學測)

No one could beat Paul at running. He _____ the running championship continuously for three years. (101學測)

The ending of the movie did not come as a surprise to John because he _____ the novel that the movie was based on. (101學測)