________ is impossible________ up to Grade Two without passing the examination．

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I won't give up________ I should fail ten times．

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If you________ smoking，you'll lose your job．

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I was about to leave my house________ the phone rang．

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In order to________ with the advanced countries，we must keep．

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What will________ the children if their father dies？

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________ is no possibility________ win the first prize in the match．

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________ good care of the vegetables so that they can remain fresh．

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He was punished________ the law．

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________ his second letter，I gave him a call for a reply．

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