If you have lost a library book, you have to _________ it.
| A．find out | B．look after | C．pay for | D．take care |
—Is this your notebook?
—_______．Mine is at home．It's _________．
| A．Yes, it is; Jack | B．Yes, it is; Jack's |
| C．No, it isn't; Jack | D．No, it isn't; Jack's |
Please call us _______ 2388977．
| A．at | B．on |
| C．in | D．with |
_______ his sister, Alice．
| A．They' re | B．These |
| C．Those | D．That' s |
This is ____ eraser and that's _______ ring．
| A．a, an | B．an, an |
| C．an, a | D．a, a |
—Would you mind if I open the window?
—.
A、Not at all
B、Yes, please do
C、All right