We often use not enough and too many / too much to talk about problems or to complain.

Not enough = less than you want or need (i.e. There aren't enough farms in that country. There isn't enough food.

Too many / too much = more than you want or need (There are too many cars on the road. There is too much traffic)

There is _______ sugar in my tea. I need to add some more milk.

She has _______ books in her backpack; she can't carry them all.

We don't have _______ chairs for the number of guests at the party. We need more.

He doesn't eat _______ vegetables for his dinner. He should have some more.

The teacher gave us _______ homework this weekend; I can't finish it all.

They have _______ time to finish their project, so they don’t need to hurry.

There are _______ people in the cinema. We’ll have to wait for the next show.

I don’t have _______ flour to make the cake. I need to go shopping.

She bought _______ new clothes for the summer. Her wardrobe is overflowing!

We have _______ milk in the fridge, so we should be able to make pancakes.

The hotel room has _______ space for our luggage. It’s really cramped.

He made _______ noise while working. It was hard to concentrate.

There are _______ students in the class to play the game. We need more participants.

There is _______ light in the room. It’s too dark to read.

She has _______ pencils to lend to her friends. She’s always prepared.

They need _______ time to complete the project. It’s due next week.

The store has _______ shoes on sale. I’m sure I’ll find a pair I like.

We need _______ chairs for everyone to sit comfortably at the dinner table.

There is _______ salt in this soup. It’s too salty to eat.

He has _______ energy to finish the marathon. He should have trained more.