---I think Miss Gao must be in the library. She said she would go there. ---No, she ___________ be there. I have just been there.
I __________ my pen everywhere, but I didn't find it.
-The light in the office is still on. -Oh, I forgot __________.
The socks are cheap(便宜的), I’ll________ it.
Could I borrow your car? I'd go downtown. ___
__we didn't get seems better than __we had.