Meaning: 'Without' means lacking or not having something, in this case, water.

Wrong options:

• With: The word 'With' indicates presence, which contradicts the intended meaning of lacking water for survival.
• fine: The word 'fine' is an adjective that describes quality, which does not fit as it does not indicate absence.
• fit: The word 'fit' is an adjective that describes health or suitability, which does not convey the absence of water.
• far: The word 'far' is an adverb that indicates distance, which does not relate to the context of needing water.
• deep: The word 'deep' is an adjective that describes depth, which does not fit the context of absence.
• can: The word 'can' is a modal verb indicating ability, which does not relate to the absence of water.

Correct answer: fit

Explanation: The term 'fit' is an adjective that describes being in good health or condition. It fits grammatically and contextually as it describes the state of humans needing fresh water to maintain their health.

Meaning: 'Fit' means being in good health or suitable condition.

Wrong options:

• fine: The word 'fine' is an adjective that can describe quality but does not specifically relate to health in this context.
• without: The word 'without' indicates absence, which does not fit as it does not describe a state of health.
• deep: The word 'deep' describes depth and does not relate to health or fitness.
• far: The word 'far' indicates distance and does not pertain to health or fitness.
• can: The word 'can' is a modal verb indicating ability, which does not describe a state of health.

Correct answer: deep

Explanation: The word 'deep' is an adjective that describes something that is far down from the surface. It fits grammatically and contextually as it describes the location of water that is inaccessible due to its depth.

Meaning: 'Deep' refers to a significant distance below the surface.

Wrong options:

• fit: The word 'fit' describes health or suitability, which does not relate to the depth of water.
• fine: The word 'fine' describes quality and does not pertain to depth.
• far: The word 'far' indicates distance but does not specifically describe the depth of water.
• without: The word 'without' indicates absence, which does not fit the context of describing the depth of water.
• can: The word 'can' is a modal verb indicating ability, which does not relate to depth.

Correct answer: can

Explanation: The word 'can' is a modal verb that indicates ability or possibility. It fits grammatically and contextually as it expresses that we have the ability to use the available freshwater.

Meaning: 'Can' indicates the ability to do something.

Wrong options:

• not: The word 'not' is an adverb that negates a verb, which does not fit the context of expressing ability to use water.
• fine: The word 'fine' describes quality and does not relate to the ability to use water.
• fit: The word 'fit' describes health or suitability, which does not pertain to the ability to use water.
• deep: The word 'deep' describes depth and does not relate to the ability to use water.
• far: The word 'far' indicates distance and does not pertain to the ability to use water.