tests by hidalgo with the online test builder (933 tests)

501. Possessive adjectives (18936 candidates)
502. Missing words (1291 candidates)
503. Personal pronouns (6692 candidates)
504. Articles (16344 candidates)
505. Missing words (1145 candidates)
506. Tenses (6832 candidates)
507. Imperative (5290 candidates)
508. Prepositions (2959 candidates)
509. Gerund (115502 candidates)
510. Find the correct word (5084 candidates)
511. Haber/hacer (3476 candidates)
512. Pretérito indefinido (44759 candidates)
513. Subjunctive present/Present (5501 candidates)
514. Participes passés irréguliers (25493 candidates)
515. Present : To have -> haber - tener (2838 candidates)
516. Quantities (5156 candidates)
517. Superlatives (9044 candidates)
518. Subjunctive (12863 candidates)
519. Por-para (25598 candidates)
520. Ser / estar : Don Quichotte (3405 candidates)