Question 19. Parents or family members need to sit down and talk with children as we as present them __ easy-to-understand data and talk about the importance of cultural diversity. A. to B. for C. at D. with Question 20. Cultural diversity is an asset that is __ for poverty reduction and the achievement of sustainable development. A. crucial B. fundamental C. critical D. indispensable C. Reading

**Question 19:**<br /><br />The correct answer is **D. with**.<br /><br />The sentence requires a preposition that indicates the act of presenting something *to* someone. "Present something to someone" is a common collocation. Therefore, "with" is the most appropriate choice. The complete sentence would read: "Parents or family members need to sit down and talk with children as well as present them *with* easy-to-understand data and talk about the importance of cultural diversity."<br /><br /><br />**Question 20:**<br /><br />All the options (A, B, C, and D) are synonyms and could be used in this context. However, "crucial," "critical," and "indispensable" imply a higher degree of necessity than "fundamental." While "fundamental" is important, it doesn't carry the same weight of absolute necessity as the others in relation to poverty reduction and sustainable development. Therefore, while all are correct to some degree, **A. crucial**, **C. critical**, and **D. indispensable** are stronger choices than B. The best choice depends slightly on the nuance desired, but all three are grammatically correct and convey the intended meaning effectively.<br />