Bears fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
| A．pack up | B．build up | C．bring up | D．take up |
．--- Do you mind my opening the window for a while?
---_______
| A．No, thanks. | B．No. Good idea. | C．Yes, please. | D．Yes. Better not. |
--- Have you read the book Oliver Twist?
--- Who_______it?
| A．writes | B．wrote | C．has written | D．had written |
Is this the house_______Abraham Lincoln was born?
| A．at where | B．which | C．in which | D．when |
--- I hope that you can remove the difference between you and Susan and become good friends.
---_______If only Susan had the same idea.
| A．My pleasure. | B．For what? | C．Why me? | D．By all means. |
_______ makes her different from other students is that she likes being alone.
| A．Who | B．Whoever | C．What | D．Whatever |