Understanding collocations, fixed phrases, and idiomatic usage — IITM BS previous year questions

Understanding collocations, fixed phrases, and idiomatic usage is part of Vocabulary in Context, Week 8 in English 2. Prasnya files every IIT Madras BS previous year question from this subtopic here, each one with a worked explanation. Take the whole set as a timed mock and you get accuracy, pacing and per-question analysis back.