الخطوة 1اختر الخيار الصحيح
الخطوة 2أضف التدريبات التي تعجبك إلى المفضلة
Others isn't an adjective but a pronoun. The adjective is other (without the s) We can say: The others aren't here, omitting the noun boys.
So is an adverb, and must qualify an adjective or another adverb. Such is an adjective and must qualify a noun
Truth isn't an adjective but a noun. The adjective is true, and we use it with no article between it and the verb to be.