Explanation: He is envious - - - my success বাক্যের শূন্যস্থানে সঠিক শব্দ বসবে - of. Envious of অর্থ কোন বিষয়ে ঈর্ষাপরায়ণ। he blank space in the sentence "He is jealous — my prosperity" can be filled with the preposition "of", which would make the complete sentence: "He is jealous of my prosperity."The preposition "of" is used here to indicate what the person is jealous of - in this case, the speaker's prosperity. The use of "of" after the word "jealous" is a common way to express that someone is envious or resentful of something that another person has.
