Prepare for O-Level Editing is based on the latest O-level assessment format. It helps students identify and correct grammatical errors in a piece of continuous text.Key Features:• 36 practices in each Books 1 and 2• 60 practices in each Books 3 and 4• Guided practice before independent practice• Authentic texts sequenced according to difficulty levels based on Lexile text measure• Answer key (with detailed explanations for Books 1 and 2)