draftA1Grammargap-fill
Choose the article that makes the sentence natural
Elena bought ___ folder. It was the first one she found.
Choose an option first, then reveal the promoted answer key.
Promoted question vault
Promoted seed sprint
A reviewer-facing sprint from generated prompts that have been promoted into seed-shaped records. Try the item like a learner, reveal the promoted key, then decide whether it can ship or needs a content fix.
Current promoted coverage
core-grammar-control 2vocabulary-collocation-depth 1test 3funnel 2arena 1daily 1