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When_____ in international trade, letters of credit are convenient.

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I can’_______ what he’s doing, it’s so dark down there.

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I did it_____ they asked me to.

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She went_______ to fetch the porter.

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I have nothing_______ you today.

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He will have to stay in hospital. That’s what he_____

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This animal extracts _________ from food to sustain itself.

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Suddenly everybody stopped_______ There was silence.

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They have plenty of time, so they need not_____

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_____ from what you say, you are innocent.

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I lost my Honda last week; I hadn’t locked it. You______ it.

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Is there any place_______ tonight?

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I think they are now accustomed to _______ 12 hours a day.

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You’re having a sore throat. You’d better_____ to the doctor.

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Down_____ for three days

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The car was easy to recognize so it wasn’t _______ difficult for the police to catch the thieves.

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Have you planned on _______ to Nha Trang this summer?

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There was no one there; _______ I went away.

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Please pardon me for _______ you.

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His parents told________ to put his coat on.

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I’m afraid I have some homework_______ today.