A sentence consists of a subject and a verb.

After the first draft of an essay, you should edit for your mistakes.

It is difficult to locate white objects in the snow.

It was very odd to see a dog driving that car.

The students are writing a paragraph about their summer vacation.

Many countries participate in the Olympics to represent their countries.

For his science project, he is making a volcano.

The Great Pyramids in Egypt are an ancient site where tourists enjoy visiting.