81.   为什么恐龙突然在地球上消失仍然是个谜。（主语从句）

问题详情：

81.    为什么恐龙突然在地球上消失仍然是个谜。（主语从句）

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82.    问题是昨晚火灾是怎么发生的。（表语从句）

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83.    他在英语演讲比赛中获得一等奖的消息让他父母很高兴。（同位语从句）

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84.    我们应该采取有效的措施阻止空气被污染。（prevent…from）

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85.    音乐会上的精*表演给我留下了深刻的印象。（leave a deep impression on sb.）___________________________________________________________________________

【回答】

dinosaurs suddenly disappeared on the earth remains a mystery.

question is how the fire broke out last night.

news that he won the first prize in the English speaking            competition made his parents pleased/happy.

should take effective measures to prevent air from pollution/being    polluted.

wonderful performances at the concert left a deep impression on me/left me a deep impression.

知识点：翻译

题型：未分类