tests by hidalgo with the online test builder (966 tests)

501. Colors and riddles (27750 candidates)
502. Demonstrative adjectives (29126 candidates)
503. Eating (33197 candidates)
504. Words borrowed from French (3436 candidates)
505. Possessive adjectives & pronouns (28928 candidates)
506. Linking words (14000 candidates)
507. Impératif affirmatif (18607 candidates)
508. DES- / IN- (4387 candidates)
509. Animals (13690 candidates)
510. Vocabulary : At school (21199 candidates)
511. Enclise (l') (40012 candidates)
512. Likes (1835 candidates)
513. Pretérito indefinido / Pretérito imperfecto (21194 candidates)
514. Haber/tener (present) (3871 candidates)
515. Pretérito indefinido: irregular verbs (8400 candidates)
516. Plural (4223 candidates)
517. Tanto (8921 candidates)
518. From another tense to present tense (1803 candidates)
519. Gérondif ou participe passé (10208 candidates)
520. #el que#lo que (4904 candidates)