TOP TIP! THE PROBLEM WITH 'MUCH', 'MANY', 'A LOT OF' exercises...
The problem with grammar exercises on many, much, and a lot of is that
many and
a lot of are often interchangeable, especially with plural countable nouns. This makes some questions ambiguous.
Examples:
Many people like coffee.
A lot of people like coffee.
(Both are correct.)
The difference is usually style, not grammar:
Many → more formal, common in questions and negatives
A lot of → informal, very common in spoken English
In affirmative sentences,
a lot of often sounds more natural:
A lot of students live near the university.
Many students live near the university. (correct but more formal)
So if an exercise says:
“___ students passed the exam.”
Both answers are correct unless the context specifies formality. Without clear context, such exercises test guessing rather than grammar.
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