Sandra was a student ____ the age of 21.
| A．at | B．in | C．on | D．for |
We didn’t know the good news ______ he told us.
| A．after | B．or | C．because | D．until |
There _________ a computer in everyone's house in the future.
| A．will have | B．will has | C．will be | D．is |
My sister can’t cook, I can’t, ________ .
| A．too | B．also | C．either | D．neither |
Please give me ________envelope, I want to write a letter to my father.
| A．a | B．an | C．the | D．/ |
Don’t wear these old clothes. They are ____ style.
| A．in | B．out | C．of | D．out of |