tests by hidalgo with the online test builder (965 tests)

501. Demonstrative adjectives (29109 candidates)
502. Eating (33189 candidates)
503. Words borrowed from French (3436 candidates)
504. Possessive adjectives & pronouns (28922 candidates)
505. Linking words (14000 candidates)
506. Impératif affirmatif (18603 candidates)
507. DES- / IN- (4387 candidates)
508. Animals (13688 candidates)
509. Vocabulary : At school (21196 candidates)
510. Enclise (l') (39993 candidates)
511. Likes (1835 candidates)
512. Pretérito indefinido / Pretérito imperfecto (21183 candidates)
513. Haber/tener (present) (3869 candidates)
514. Pretérito indefinido: irregular verbs (8400 candidates)
515. Plural (4223 candidates)
516. Tanto (8919 candidates)
517. From another tense to present tense (1803 candidates)
518. Gérondif ou participe passé (10205 candidates)
519. #el que#lo que (4900 candidates)
520. Diminutive words (4369 candidates)