【B7】A．off and onB．back and forthC．up and downD．far and wide

She feel very tired and was glad to him.A、put onB、depend onC、lean on

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● The （74） scheme in a database system is responsible for the detection of failures and fo

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What will the man do next？A．Have a lunch and come back.B．Go on waiting.C．Give up and leave

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The ship took machines and other goods back to the port ________ it had set off. A：from

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He is______an important customer now and he will be back tonight.A．calling onB．calling upC

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Weve signed an agreement and we cant______of it now.A．back downB．back offC．back upD．back o

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He came back home weary and 【fatigued】.A.scaredB

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