The film began 10 minutes ago.

I ________a primary school student two years ago.

—Where ___________ you go yesterday?  —I ___________ to the beach.

Our country _______ a lot in the last fifty years.

When the teacher came in, all of us _______.

Mr. Wu___this math problem____him many times, but he still doesn’t understand it.

I believe that he _____ us as soon as he comes back to China.

- You seem to be familiar with this city.
- I_______ here for three years. It's great to be back.

—Have you seen my brother?
—Yes. I _____ him in the library five minutes ago.
A.have met        B. met            C.meet   

—What _____ to your village in recent years?
—Lots of roads, buildings, parks and so on.
A. have happened      B. happened       C.has happened