________ one's head on the back of his／her hand means“I'm tired”．

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Some habits ________from here to there in our country，for example， the way to give friends presents．

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Body language can also be used to communicate ________each other．

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I have met some trouble to solve this problem．Could you give ________to me？

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I try to avoid ________shopping on Saturday－they are always too busy．

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I kept myself ________up and down．

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In ancient times，people couldn't find any ________machine to find the ________of an elephant．

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After working her way around the world，she ________English as a foreign language．

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Now I regretted the time ________ doing nothing but play.

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She was only just ________the flu when she had a stomach bug．

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