—What happened to Tom?—He ______ his leg while playing football with his classmates.

It ______ that Tokyo will be the host city for the 2020 Summer Olympic Games.

—Cathy, did you attend the lecture given by Mr Black last night? —No. I ______ a report at the office.

 —Where did you go on National Day? —Jiuzhai Valley. I ______ to go to France, but the expense was too high. 

. -Did you get ro the village before the sun set? -No. It was already midnight. My bike ____ on the way.

There______ large quantities of things for him to do, but he managed to finish the work as required.

 --You do a very good job in German translation! --Thanks. I ______ German in Zhejiang University for four years!

---- How about your last weekend?---- It was boring. I______ anything.

Mr. Smith, I should tell you this is the fifth time you ______ me for my twin sister.

The job proved to be much more difficult than I______. 

– Where does your brother work, Jane?-- In America. But he __________in China for 5 years.

Experiments of this kind ___in both the U．S and Europe well before the Second World War．

—I remember I left my laptop in the study last night. Why ________ here? —Oh, I thought you might need it so I brought it here for you.

 Japan’s economy _______ in the past twenty years. No one knows how long it ______ before it regains its increase.

When Mary came, I _____ on the piano.

He will have learned English for eight years by the time he        from the university next year．

Computers ____ in offices and homes since 1970s. 

--- Do you want a lift home? --- It’s very kind of you , but I have to work late in the office . I over slept this morning because my alarm clock _________ .

His novels sell best and have made him famous, but before that no one could have imagined how great a role he ______ in the literary world．

A few minutes earlier, and you would have seen the NBA star. But you ______.