________ you don't lose heart, you'll find the way out.

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________ he went to town, he would have a look at the bookstores.

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________ such a difficult task, we must redouble our efforts.

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The thief stole my wallet ________ I knew it.

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You are saying that everyone should be equal, and this is _________ I disagree.

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Tiantian plays football ________, if not better than, Weiwei.

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Let's keep to the point or we ________ any decisions.

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It was a long time ________ I met her last.

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The rich boss is always unhappy ________ he has a lot of money.

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He failed to do it ________ he was too careless.

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