B2Grammarsentence-correction
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He suggested me a better option
Choose mentally first, then reveal the target.
Generated question vault
A focused deck from one reusable question family. Answer first, reveal the target pattern, then mark whether you had it. This turns the generated bank into real daily reps without pretending draft prompts are final diagnostics.
Families
Mechanics
Choose or write the corrected version.
Choose mentally first, then reveal the target.