______the socks, Jim. You shouldn’t throw them everywhere.—OK， Mum.
Do you know the way to _______ library? Yes, It’s about half _____ hour on foot.
We have T-shirts ________ green for only $ 8. [ ]
The room was very dark, so I couldn’t see anything ______
________ shall we paint the walls?—I prefer white. It makes us feel calm and peaceful.[ ]