IF I/ NOT / TELEVISION/ I / HEARD/ BURGLAR ALARM / OFF

2. If I/ not / television/ I / heard/ burglar alarm / off.A. If I hadn

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t watched television, I had heard the burglar alarm go off.B. If I didn

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t watch television, I would have heard the burglar alarm go off.C. If I hadn

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t watch television, I would have heard the burglar alarm go off.D. If I hadn

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t watch television, I would heard the burglar alarm go off.