________ a pity you missed the lecture made by Professor Song.

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________ he got to the village is still unknown.

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________ this material can be used in our factory has not been studied yet.

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________ you have done!

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Such ________ Albert Eintein, a simple man and a great scientist.

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How can you deal ________ this difficult problem?

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This is the way ________ the top of the hill.

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Many old men are fond ________ fishing.

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After finishing middle school, he first worked ________ teacher.

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I don’t think ________ necessary to talk with him about it.

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