ক. If the room was brighter
খ. If the room would have been brighter
গ. If the room could have been brighter
ঘ. If the room had been brighter ✔
ব্যাখ্যা: Main clause---এ 'would have been able' থাকায় এটি Third Conditional। তাই If clause---এ Past Perfect Tense (had been brighter) বসবে।
বিজ্ঞাপন
