Draw a horizontal line. Use initials (A, B, C, D, E). Apply constraints from left to right. Answer: Cường – An – Bình – Em – Dung. The middle is An .
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| Resource Name | Format | Cost | Best For | | :--- | :--- | :--- | :--- | | | Web-based quizzes | Freemium (500 free questions) | Timed practice | | Hocmai.vn NAIS community | Forum + PDFs | Free (registration required) | Peer support & old exams | | Violet.vn NAIS documents | User-uploaded .doc/.pdf | Free (some require login) | Downloadable worksheets | | YouTube “Luyện đề NAIS” playlists | Video walkthroughs | Free (ad-supported) | Learning problem-solving speed | Draw a horizontal line