Answer:
It would be Preparo el jugo con las frutas. (A)
Explanation:
las frutas means "the fruit" and your incomplete sentence describes that you are making "juice" and it is common sense that juice is made out of fruit, not a fork or "the cold".
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The answer is está la biblioteca. which would be A
Mark down whenever an assignment or project is due on your calendar. And I would listen to Spanish conversations on Youtube to get a better understanding of the language.