Fill in the blank with the most appropriate word. When did Fatih Sultan conquer Istanbul? Istanbul ________ by Fatih Sultan in 1453. A. was conquered B. conquered C. be conquered D. is conquered

The correct answer is: Istanbul was conquered by Fatih Sultan in 1453.

The other options are incorrect because they do not agree with the tense of the sentence. The sentence is in the past tense, so the verb must also be in the past tense.

• Option A: Istanbul was conquered by Fatih Sultan in 1453. This is the correct answer because it agrees with the tense of the sentence.
• Option B: Istanbul conquered by Fatih Sultan in 1453. This is incorrect because the verb is in the present tense.
• Option C: Istanbul be conquered by Fatih Sultan in 1453. This is incorrect because the verb is in the infinitive form.
• Option D: Istanbul is conquered by Fatih Sultan in 1453. This is incorrect because the verb is in the present tense.

I hope this helps!