tests by hidalgo with the online test builder (911 tests)

501. Missing words (1289 candidates)
502. Personal pronouns (6686 candidates)
503. Articles (16344 candidates)
504. Missing words (1143 candidates)
505. Tenses (6828 candidates)
506. Imperative (5288 candidates)
507. Prepositions (2958 candidates)
508. Gerund (115464 candidates)
509. Find the correct word (5084 candidates)
510. Haber/hacer (3471 candidates)
511. Pretérito indefinido (44744 candidates)
512. Subjunctive present/Present (5500 candidates)
513. Participes passés irréguliers (25457 candidates)
514. Present : To have -> haber - tener (2837 candidates)
515. Quantities (5153 candidates)
516. Superlatives (9041 candidates)
517. Subjunctive (12856 candidates)
518. Por-para (25591 candidates)
519. Ser / estar : Don Quichotte (3403 candidates)
520. Imperative (2772 candidates)