You will not win the first prize ________ you work harder.A. if B. unless C. or
The desk is ________ the way. Please carry it to an empty room.
People, especially teens, think it great fun to surf on Internet.
—Could you tell me ______ ? —Glad to help.
Neither I nor he ______ compared the prices of the PC, so ______ he ______ I decided to know more before buying it.
If you have a chance to study abroad, you must catch it and remember “Change always ______ about new possibilities. ”