I would appreciate ______ if you could give me a reply as soon as possible.
| A．you | B．it | C．that | D．them |
—I wonder how much you charge for your services.
—The first two are free ________ the third costs $30.
| A．while | B．until | C．when | D．before |
Try to read stories in English and speak in English whenever you can，________ you will see more progress over time.
| A．but | B．or | C．and | D．so |
Stand over there ________ you'll be able to see the oil painting better.
| A．but | B．till | C．and | D．or |
He found it increasingly difficult to read，________ his eyesight was beginning to fail.
| A．though | B．for | C．but | D．so |
John plays basketball well，________ his favorite is badminton.
| A．so | B．or | C．yet | D．for |