Having heard the news, he began to weep. (Make it complex)

- Simple: Having heard the news, he began to weep. - Complex: When he had heard the news, he began to weep. • Having + Verb এর past participle form যুক্ত Simple Sentence কে Complex Sentence এ রূপান্তরিত করার নিয়ম:- প্রথমেই Having এর পরিবর্তে When বসে।- তারপর Subject + had + Verb এর past participle form বসে।- বাকী অংশ অপরিবর্তিতভাবে বসে।• ​More examples:- Simple: Having eaten lunch, he resumed work.- Complex: When he had eaten lunch, he resumed work.- Simple: Having finished the work, he left the office.- Complex: When he had finished the work, he left the office.Source: Advanced Learners Communicative English Grammar & Composition By Chowdhury & Hossain.