The CDs are on sale! Buy one and you get _____ completely free．
| A．other | B．others | C．one | D．Ones |
Your work would be much better _____ you’re always in such a hurry.
| A．when | B．because | C．once | D．unless |
Was it near the white building, if I may ask, ____ Martin Luther King gave the speech “I have a dream”?
| A．where | B．that | C．in which | D．why |
You will find what great benefit the computer you own can be _____ each time you use it to help you work.
| A．for | B．at | C．of | D．on |
— Can I have a day off tomorrow, Mr. Johnson?
— ________. I can manage without you.
| A．Forget it. | B．I’m afraid not. |
| C．It depends. | D．Of course. |
Interest is as ________ to learning as the ability to understand, even more so.
| A．vital | B．original | C．adequate | D．explicit |