tests by hidalgo with the online test builder (848 tests)

501. Animals (13639 candidates)
502. Vocabulary : At school (21059 candidates)
503. Enclise (l') (39742 candidates)
504. Likes (1833 candidates)
505. Pretérito indefinido / Pretérito imperfecto (20886 candidates)
506. Haber/tener (present) (3862 candidates)
507. Pretérito indefinido: irregular verbs (8375 candidates)
508. Plural (4222 candidates)
509. Tanto (8903 candidates)
510. From another tense to present tense (1800 candidates)
511. Gérondif ou participe passé (10079 candidates)
512. #el que#lo que (4892 candidates)
513. Diminutive words (4352 candidates)
514. Simple past - irregular verbs (70721 candidates)
515. Personal pronouns (1328 candidates)
516. Muy/Mucho (29378 candidates)
517. Pretérito indefinido / Conditional present (5314 candidates)
518. Synonyms (verbs) (12483 candidates)
519. Esta - está - ésta (20329 candidates)
520. Enclisis (9902 candidates)