-____________ do you do volunteer work?
- Once a month. I think it is meaningful.
How often
How far
How many
How long
—What does she look like? —____
—Dongdong, ____ car is that? —It’s ____.
—____, Tom. Is this your book? —No, it isn’t. I think it’s ____.
We don’t know _________. She is new here.
That’s not picture. is on the desk.