Yellow Book Units 1-6 Part 1

The engine ___ running smoothly.

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The brakes ___ not working properly.

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___ the mechanic checking the transmission?

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The tires ___ new.

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The car ___ not a hybrid.

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The first part to be replaced ___ the windshield.

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The second most important component ___ the engine.

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The third accessory we need to check ___ the air conditioning system.

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The mechanic ___ repairing the car at the moment.

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The customers ___ not waiting for the car delivery.

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