Choose the correct option to fill in the blank:

________ can fly very fast.

Eagles

The correct answer is Option (2) - Eagles

The sentence "________ can fly very fast" requires a subject that is plural and generic, as it refers to the general ability of eagles to fly fast.

1. The eagles

   • Incorrect: "The eagles" refers to specific eagles, but the sentence implies a general statement about eagles.

2. Eagles

   • Correct: "Eagles" is a plural noun referring to eagles in general, which fits the context of the sentence.

3. A eagle

   • Incorrect: "A eagle" is grammatically incorrect because "a" cannot be used with a word starting with a vowel sound. Also, "a eagle" is singular, while the sentence refers to a general ability.

4. An eagles

   • Incorrect: "An" is used with singular words that start with a vowel sound, and "eagles" is plural, making this grammatically incorrect.