I don’t know ______ or not the books _____ to the homeless children next month are really useful.
--- How many chapters does the book have?--- It three chapters.
--- How did you with that idea?--- I read a book.
--- Who cleaned the classroom?--- We consider Tom it.
--- I’m tired. I’m taking next week off.--- , honey. You do need a break.
You must keep on working in the evening, you are sure you can finish the task in time.