Singular - a lot (of) (+) much (- ?) little Plural - a lot (of) (+) many (- ?) few 1.- There are … … schools in big cities, but there are very … in small towns. 2.- This beach…

Конечно! Вот подробное решение и объяснение для каждого пункта с учетом правил использования "a lot of", "much", "many", "little", "few":

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Общие правила:

• "a lot of" + существительное — используется в утвердительных предложениях с исчисляемыми и неисчисляемыми существительными, означает "много".
• "much" — неисчисляемые существительные, в вопросах и отрицаниях, например: "How much water?" — "Сколько воды?"
• "many" — исчисляемые существительные, в вопросах и отрицаниях, например: "How many books?" — "Сколько книг?"
• "little" — неисчисляемые, мало (недостаточно).
• "few" — исчисляемые, мало (недостаточно).

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1. There are … schools in big cities, but there are very … in small towns.

• В городах много школ — many.
• В маленьких городах очень мало школ — few.

Ответ:
There are many schools in big cities, but there are very few in small towns.

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2. This beach used to have very … … sand, but they brought sand on and now there is …

• Ранее было очень много песка — a lot of.
• Теперь песка мало — little.

Ответ:
This beach used to have very a lot of sand, but they brought sand on and now there is little.

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3. How … … time do you spend doing your exercises? I don't spend … … time. I'm a bit lazy.

• Сколько времени — вопрос с "How much" (неисч.–время).
• Много — a lot of.
• Мало — little.

Ответ:
How much a lot of time do you spend doing your exercises?
I don't spend much little time. I'm a bit lazy.
(Но обычно правильнее писать: "I don't spend much time" — без "a lot of", так как "many" и "a lot of" обычно с исчисляемыми; "time" — неисчисляемое. Правильный вариант: "How much time do you spend?" и "I don't spend much time.")

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4. This library is not very important. There aren't … … books, but at my university library there are …

• В этой библиотеке мало книг — many или few (зависит от контекста; обычно в отрицании — few).
• В университетской — много — many.

Ответ:
There aren't many books, but at my university library there are many.

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5. There's … … wine in the green bottle. In the brown bottle there is very

• Много вина — a lot of.
• В другой бутылке — очень мало — little.

Ответ:
There's a lot of wine in the green bottle. In the brown bottle there is very little.

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6. How … … rings does she wear? She's got … … rings. Today she is wearing very …

• Много колец — many.
• Она носит — several или a few.
• Сегодня очень много — many.

Ответ:
How many rings does she wear? She's got several rings. Today she is wearing very many.

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7. I've got … … free time because I am on holiday but I usually have … when I have to work.

• Свободного времени — a lot of.
• Обычно — little.

Ответ:
I've got a lot of free time because I am on holiday but I usually have little.

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8. How … … food is there in the fridge? There's … … in the fridge. I did the shopping yesterday.

• Много еды — much.
• Мало — little.

Ответ:
How much food is there in the fridge? There's little in the fridge. I did the shopping yesterday.

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8 (повторно). How … … stops are there between these two stations? There aren't … … stops between these stations but there … after the second station.

• Много остановок — many.
• Нет — any или few.
• Есть — a few.

Ответ:
How many stops are there between these two stations? There aren't many stops between these stations but there are a few after the second station.

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9. I haven't got … … money. I have spent … … this weekend.

• Деньги — much.
• Много — a lot of или much.

Ответ:
I haven't got much money. I have spent a lot of this weekend.

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10. The AVE train has got … … carriages. Old trains used to have very …

• Много вагонов — many.
• Очень много — a lot of.

Ответ:
The AVE train has got many carriages. Old trains used to have very a lot of.

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11. There're … … photos in the album. In my wallet I carry very …

• Много фотографий — many.
• Немного — few.

Ответ:
There're many photos in the album. In my wallet I carry very few.

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12. How … … sugar have you put in my coffee? You like sweet things, so I have put … … sugar.

• Много — much.
• Много — a lot of.

Ответ:
How much sugar have you put in my coffee? You like sweet things, so I have put a lot of sugar.

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13. There're … … cars on the road at weekends. On week days there aren't … …

• Много — many.
• Нет — many или any (часто в отрицании используют "any").

Ответ:
There're many cars on the road at weekends. On weekdays there aren't many (or any) cars.

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14. If you do … … homework today, you'll have very … to do tomorrow.

• Много — a lot of.
• Много — a lot of или much.

Ответ:
If you do a lot of homework today, you'll have very little to do tomorrow.

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Если потребуется, я могу подготовить полный текст с ответами или помочь с более детальным разбором.