Explanation:

- The muskmelon is (1)______ perfect summer (2)______.

- Here, words like "a" or "the" could fit well in blank 1, and words like "fruit" or "delight" might work in blank 2.

- It is (3)______ in water content which can help (4)______ care of our (5)______ fluid loss that we suffer in the hot season.

- In blank 3, an adjective such as "high" or "rich" is suitable to describe water content.

- In blank 4, the correct verb is needed. Options are provided to fill this blank.

- Blank 5 could be filled with a possessive adjective like "natural" or "daily" for fluid loss.

- Let's consider the options for blank 4:

- Option 1: took - This verb is past tense, which doesn't fit as the sentence requires present tense.

- Option 2: take - This is the correct verb in base form, suitable for constructing the phrase "take care of."

- Option 3: like - This doesn't fit grammatically in the context of the sentence.

- Option 4: look - Although in base form, it doesn't fit contextually with "care of."