— Are you sure you have to ? It’s been very late.— I don’t know __________ I can do it if not now.
--Excuse me , is this your jacket? --Yes, ______.
I have (有)_____ ruler and ____ eraser.
Chanjiang River is one of________ in the world.
David likes vegetables, _________ tomatoes, potatoes and cabbages.
—What do you think of sports shows? —_____________.