He is using binoculars to observe birds.

My friend has twin brothers.

He is good at finding stick insects.

Meiji Festival is an important day in Japanese history.

Advent is the season to celebrate the period before Christmas.

What he said is a subordinate clause.

What is the main clause of this sentence?

I feel that my lymph nodes are swollen.

Qingming Festival is a day to clean the ancestors' graves and show respect.

This text is organized using section signs.