The answer is B because the article says that dogs are strong companions but do have needs
Prepositional phrase: On the bike trail
Preposition: On
Object of the preposition: bike trail
Explanation:
In grammar, words are classified depending on their function in the sentence. In the case of prepositions, the function of these is to show location, time, etc., this includes words such as in, at, above, through, on, among others. According to this, the sentence presented includes the preposition "on".
Moreover, prepositions can be used to form prepositional phrases to do this, begin with a preposition and then add to it a noun, which is known as the object of the preposition as this is the object modified by the preposition. In this context, the complete prepositional phrase is "on the bike trail" and the object of the preposition is "bike trail."
If I were you I would choose 1 and 4 !
It should be, "The birds flew away."
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