The farming methods have been ________ improved with the invention of the new machine.

The government finally ________ all the documents relating to the war.

People who can ’t _______ between colors are said to be color -blind.

英文翻译：在经济危机之后，人们不再认为他们房子的价值会继续升高。

The outline of rooftops and chimneys ________ against the pale sky.

During the past two decades, research has ________ our knowledge of daydreaming.

The students are required to ________ the main ideas of the article in their own words.

英语翻译：我不明白她如何能在一天之内做那么多事情。

Fish is ________ and expensive at this time of the year in this area.

英语翻译：你为什么把失败视为当然呢?