tests by hidalgo with the online test builder (946 tests)

501. Diminutive words (4328 candidates)
502. Simple past - irregular verbs (70265 candidates)
503. Personal pronouns (1319 candidates)
504. Muy/Mucho (29162 candidates)
505. Pretérito indefinido / Conditional present (5301 candidates)
506. Synonyms (verbs) (12474 candidates)
507. Esta - está - ésta (20178 candidates)
508. Enclisis (9875 candidates)
509. Present - Irregular verbs (2638 candidates)
510. Present - Regular verbs (8634 candidates)
511. Possessive adjectives (11689 candidates)
512. Imperative no (39203 candidates)
513. Possessive adjectives (18961 candidates)
514. Missing words (1296 candidates)
515. Personal pronouns (6719 candidates)
516. Articles (16347 candidates)
517. Missing words (1155 candidates)
518. Tenses (6849 candidates)
519. Imperative (5311 candidates)
520. Prepositions (2976 candidates)