Obama’s success in presidential election proves that the color of one’s skin shouldn’t be a________to success.

 Small cars are ___ of fuel, so they have more appeal for consumers.

In the past ten years, the ________mountain climber _________ a lot from his own adventurous _______

They are the __ who __ Wuhan University and now are playing an important part in our factory.

Just tell me the accident to the point, but don’t ______ any important detail.