Теорія:

Study the information about the basic uses of ‘much’, ‘many’, ‘lot of’.
  
1. Much (+ uncountable, always singular) and many (+ plural countable).
 
- Negative statements.

We haven’t got much time.
 
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There are not many pandas in China.

2. A lot of, lots of  with plural countable or singular uncountable.

- Affirmatives.

She has got a lot of time.

She has got a lot of books.
  
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3. We can also use much and many in the affirmatives.

- Formal statements

Many people retire early.

- As___as

Take as much as you want.

-Time references.

I have lived here for many years.

4. You can use not many, not much to begin a sentence.

Not many people know about it.

5. You can use not a lot of for emphasis.

I haven’t got a lot of time for people like him.
Джерела:
enginform.com
www.pri.org
oliverbphotography.deviantart.com
L.G Alexander. Longman English Grammar practice for intermediate students- Harlow: Longman, 296p.