Have you heard about Volunteer? —Sure, A volunteer is someone _________ is willing to offer help without being paid..
He wants to be a writer so he is going to _______ writing stories
Daniel is the most modest boy in your class. He never __________ in public.
I don’t like learning math. Because it’s not so _______ as English.
Please __ your notebook to school. I want to use (用) it.