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¡ñ They live in America.£¨Ò»¹áµÄ£©
¡ñ They are living in America.£¨ÔÝʱµÄ£©
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¡ñ My TV works well.

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¡ñ My TV is working well.

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¡ñ More and more people buy TV sets.

¡ñ More and more people are buying TV sets.

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It    rainedÏÂÓê.      It  was   raining.

Th  girl cried¿Þ.     The girl was crying.

-------- I had very good seat. The play was very interesting. I did not enjoy it. A young man and a young woman were sitting behind me. They were talking loudly.

 ¡ñ Do you know your wife was having dinner with a guy in the restaurant near our school yesterday evening?

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¡ñ I will waitµÈ´ýfor you at the airport.
¡ñ  I will be waiting for you at the airport.

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It    rained.       It  was raining.