[{"id": 1, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: unh_ppy", "difficulty": "medium", "explanation": "The correct spelling is \"unhappy\".", "needs_review": false, "correct_answer": "unhappy"}, {"id": 2, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: unkn_wn", "difficulty": "medium", "explanation": "The correct spelling is \"unknown\".", "needs_review": false, "correct_answer": "unknown"}, {"id": 3, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: un_ble", "difficulty": "medium", "explanation": "The correct spelling is \"unable\".", "needs_review": false, "correct_answer": "unable"}, {"id": 4, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: unf__r", "difficulty": "medium", "explanation": "The correct spelling is \"unfair\".", "needs_review": false, "correct_answer": "unfair"}, {"id": 5, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: r_wr_te", "difficulty": "medium", "explanation": "The correct spelling is \"rewrite\".", "needs_review": false, "correct_answer": "rewrite"}, {"id": 6, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: r_t_rn", "difficulty": "medium", "explanation": "The correct spelling is \"return\".", "needs_review": false, "correct_answer": "return"}, {"id": 7, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: r_pl_y", "difficulty": "medium", "explanation": "The correct spelling is \"replay\".", "needs_review": false, "correct_answer": "replay"}, {"id": 8, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: r_b_ild", "difficulty": "medium", "explanation": "The correct spelling is \"rebuild\".", "needs_review": false, "correct_answer": "rebuild"}, {"id": 9, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: pr_v_ew", "difficulty": "medium", "explanation": "The correct spelling is \"preview\".", "needs_review": false, "correct_answer": "preview"}, {"id": 10, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: pr_p_y", "difficulty": "medium", "explanation": "The correct spelling is \"prepay\".", "needs_review": false, "correct_answer": "prepay"}, {"id": 11, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: d_s_gree", "difficulty": "medium", "explanation": "The correct spelling is \"disagree\".", "needs_review": false, "correct_answer": "disagree"}, {"id": 12, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: d_sl_ke", "difficulty": "medium", "explanation": "The correct spelling is \"dislike\".", "needs_review": false, "correct_answer": "dislike"}, {"id": 13, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: d_s_pp_ar", "difficulty": "medium", "explanation": "The correct spelling is \"disappear\".", "needs_review": false, "correct_answer": "disappear"}, {"id": 14, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: m_st_ke", "difficulty": "medium", "explanation": "The correct spelling is \"mistake\".", "needs_review": false, "correct_answer": "mistake"}, {"id": 15, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: m_spl_ce", "difficulty": "medium", "explanation": "The correct spelling is \"misplace\".", "needs_review": false, "correct_answer": "misplace"}, {"id": 16, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: ov_rfl_w", "difficulty": "medium", "explanation": "The correct spelling is \"overflow\".", "needs_review": false, "correct_answer": "overflow"}, {"id": 17, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: ov_rl_ok", "difficulty": "medium", "explanation": "The correct spelling is \"overlook\".", "needs_review": false, "correct_answer": "overlook"}, {"id": 18, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: und_rl_ne", "difficulty": "medium", "explanation": "The correct spelling is \"underline\".", "needs_review": false, "correct_answer": "underline"}, {"id": 19, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: und_rgr__nd", "difficulty": "medium", "explanation": "The correct spelling is \"underground\".", "needs_review": false, "correct_answer": "underground"}, {"id": 20, "type": "short_answer", "skill": "spelling patterns", "question": "Fill in the missing letters to spell the word: int_rn_t__nal", "difficulty": "medium", "explanation": "The correct spelling is \"international\".", "needs_review": false, "correct_answer": "international"}]