Answer:
a. He is the heir of a rich man. (article) b. He is a university teacher. (article) Sita married Ram. (Preposition) d. I will visit you on Monday. (preposition) e. Did Mina go to Pokhara yesterday? (tag-question) f. You'd rather say the truth, right? (tag-question) g. Mina and Bina have ate mangoes. (Correct form of the verb 'eat'. h. She had a golden watch. (negative) Mohan use to make beautiful kites. (negative) j. Does it make any sense? (Statement) k. Yes, he is a doctor. (Yes/No-question) Is the fan moving?