Chapter 5 of 518% of exam
Error Correction
At C1, errors involve subtle collocation, register, redundancy and structural agreement that even strong learners overlook. This chapter sharpens your eye.
Collocation and Redundancy
Advanced errors include wrong collocations ('make research' for 'do research'), pleonasm ('return back', 'past history'), and register clashes. The correct version is concise and idiomatic.
Structural Agreement and Concord
Watch for faulty parallelism, misused inversion, and subject-verb concord after complex subjects ('Neither of the reports was...', 'A number of people were...').