надо выбрать слова и объяснить почему. заранее People listen (for/to/-/by) music (by/over/for/from) various reasons. Some people use music in order to (increase/lessen/better / decrease) relaxation. Others use music as а (way/shape/form/lane) of energy. Music is (listened/appreciated/memorised/heard) in cars, in homes, at shopping malls, and at dentists' offices, among many (some/others/another/other) places around the world. Sometimes, а song gets into your (brain/ear/head/mouth) and you find yourself humming а tune all day long and then you realise you heard 2 seconds of that song оп your radio alarm that morning. This is thе (opinion/thought/idea/wish) behind Muzak. ln 1922, General George Squier(discovered/made/invented/founded) Muzak. Не realized that people work (hard/more/hardly/harder) when they listen to specific kinds of music. As а result, the ВВС began to (give/broadcast/show/present) music in factoгies during World War II in order to awaken tired workers. Careful programming of Muzak has proved to increase productivity at workplaces, increase sales at supermarkets, and even (eliminate/persuade/provoke/help) potential shoplifting at department stores.

1. Our customers are from English-speaking countries.

Our customers aren't from English-speaking countries.

Our customers are from English-speaking countries, aren't they?

2. There was a confidential document in that safe.

There wasn't a confidential document in that safe.

Was there a confidential document in that safe?

 3. She must know a foreign language in order to be a good secretary.

She must not know a foreign language in order to be a good secretary.

Who must know a foreign language in order to be a good secretary?

4. The Earth goes round the Sun.

The Earth doesn't go round the Sun.

The Earth goes round the Sun, doesn't it?

5. Alex is getting married next month.

Alex isn't getting married next month.

Is Alex getting married next month?

6. The police stopped me on my way home last night.

The police didn't stop me on my way home last night.

Who stopped me on my way home last night?

7. Yesterday Tom woke up early.

Yesterday Tom didn't wake up early.

When did Tom wake up early?

8. Lots of things have happened since I last wrote to you.

Lots of things haven't happened since I last wrote to you.

Have lots of things happened since I last wrote to you?

9. They'll have business talks tomorrow morning.

They won't have business talks tomorrow morning.

They'll have business talks tomorrow morning, won't they?

1. Are our customers from English-speaking countries?

    Our customers aren't from English-speaking countries.

2. Was there a confidential document in that safe?

   There wasn't a confidential document in that safe.

3. Must she know a foreign language in order to be a good secretary?

    She mustn't know a foreign language in order to be a good secretary.

4. Does The Earth go round the Sun?

    The Earth doesn't go round the Sun.

5. Is Alex getting married next month?

    Alex isn't getting married next month.

6. Did the police stop me on my way home last night?

    The police didn't stop me on my way home last night.

7. Did Tom wake up early yesterday?

    Tom didn't wake up early yesterday

8. Have lots of things happened since I last wrote to you?

     Lots of things haven't happened since I last wrote to you.

9. Will they have business talks tomorrow morning?

    They won't have business talks tomorrow morning.