Care must be taken in using this method lest overflow______.A．should occurB．occursC．occurr

However, where immediate action is necessary to ensure safety of the ship, its machinery and crew, it must be taken by the engineer in chargeWhat dose “it” mean in the sentence above？

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In determining safe speed，all of the following must be taken into account EXCEPT the （).

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Care must be taken not to wash or iron synthetic fibers at _____.A、a too high temperatu

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Care must be taken to condition the ______ in the boiler to prevent scaling, and corrosion

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Which of the following precautions must be taken if an electric immersion heater is used t

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Extract 1 In any relationship the worst pitfall is possessiveness. You must never thi

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The electric shaver______before it can be used.A．must repairB．should be in repairC．has to

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