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Weak spots

Sections are ranked by how shaky your own record is: quiz questions and predictions you got wrong count most, then exercises you have not finished in sections you have started. Each day’s drill mixes up to 10 items from the top of that ranking, mostly the ones you missed. Answering a question correctly here clears it from your weak spots.

The weak-spots drill needs JavaScript.

Your answers are saved in this browser only, with the rest of your progress. A section's weak spots are wrong quiz answers, wrong predictions and exercises you have not finished.

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