MP3 files depend on the fact that our 1) do not detect all 2). An MP3 encoder removes from a WAV 3) all but the parts we don't 4). Sounds above 16kHz are 5) for most people so these can be 6). Quieter sounds masked by loud sounds of a similar 7) are also removed. The result is an MP3 file which is much 8) than the WAV original.

1) She has lived there for 5 years.

She hasn't lived there for 5 years

Has she lived there for 5 years?

2) You have invited him to the party.

You haven't invited him to the party

Have you invited him to the party?

3) He has bought a new house

He hasn't bought a new house

Has he bought a new house?

4) Tom and his friend have earned a lot of money

Tom and his friend haven't earned a lot of money

Have Tom and his friend earned a lot of money?

5) He has met her

He hasn't met her

Has he met her?

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1. I would prefer to live in apartment in the center of the city, because it's more useful to get to working place or to school, or just to see something interesting
2. I would rather prefer to selebrate at a restaurant, bacause I have lots of friends and it wouldn't be comfortable to selebrate in our small flat
3. I would prefer to start my own business because if a company of a plant is your own's, everything depends on you and you are an architect of one's own fortunes
4. I would prefer accordeon lessons because Chinese is to difficult