Book units
The half of the book that is not a practice test. Twenty-six Academic teaching units, each with what it teaches in our words, its exercises deep-linked into the reader and markable here, and what to keep. The book stays in the PDF — this is the companion around it.
Work the exercises, not the prose
Reading a teaching unit and moving on produces nothing you can be marked on. The exercises are
the unit. Do them in the book, enter them here, and the determinate ones mark exactly as a real
paper does. Where the book only suggests an answer, the page says so rather than
pretending to score you.
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