What were you doing the rainstorm?
| A．at that time | B．in time | C．at the time of | D．when |
—Where's the map?
—It's _______ your grandparents ' room, _______ the wall．
| A．of, on | B．in, on |
| C．on, in | D．in, of |
—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 |