【C15】A．containB．ownC．existD．produce

【C15】A．causeB．courseC．cautionD．case

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【C15】A．installmentB．expeditionC．analysisD．option

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【C15】A．orB．andC．soD．then

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【C15】A．whileB．afterC．beforeD．over

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【C3】A．to produceB．who producesC．produceD．how to produce

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【C18】A．ceaseB．aggravateC．existD．accelerate

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Today the turntable may be replaced by______.A．music produced on computersB．music produced

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