In the new century, we still should _____ primary importance to the development of economy.
People often mistake some __________ objects such as kites or balloons for UFOs.
—Did you happen to see __________ black and __________ white cat? —Are they missing? I told you to take care of them.
Newspapers reported the news; __________, I think that's all nonsense.
If you __________ my advice, you __________ your failure now. You __________ your victory.
If they don't __________ to overcome bad habits, they won't be able to achieve their goal.