He is an old man.

He is a young man.

He is a little boy.

He is a young woman.

I need a pen to write a letter.

I need a pen to write a picture.

I need a pen to read a letter.

I need a book to write a letter.

She looked out the window.

She ran up the stairs.

She walked down the street.

She drove along the river.

Let's go back to the same restaurant for lunch today.

Let's try another restaurant for lunch today.

Let's have dinner at another restaurant today.

Let's skip lunch at the restaurant today.

The quality of the product is excellent.

The size of the product is appropriate.

The price of the product is reasonable.

The design of the product is modern.

Coal is a liquid fuel that is primarily used for aviation and maritime transportation.

Coal is a type of metal that is used for building construction and automobile manufacturing.

Coal is a renewable energy source that is mainly used for food production and cooking.

Coal is a fossil fuel that is used for power generation and heating.

Please do not take any photos at the wedding.

Please bring a casual gift to the wedding.

Please arrive very early at the wedding.

Please wear formal attire to the wedding.

There are thirty students in the classroom.

There are thirteen students in the classroom.

There are thirteen students in the gym.

There are thirteen teachers in the classroom.

I spend my time without any plan.

I waste my time on unnecessary things.

I manage my time effectively.

I let others decide how I use my time.

I bought a new tool for my work.

I borrowed a new tool from my colleague.

I bought a new car for my work.

I sold an old tool for my work.