tests by hidalgo with the online test builder (950 tests)

521. Present - Regular verbs (8688 candidates)
522. Possessive adjectives (11724 candidates)
523. Imperative no (39527 candidates)
524. Possessive adjectives (18988 candidates)
525. Missing words (1297 candidates)
526. Personal pronouns (6769 candidates)
527. Articles (16355 candidates)
528. Missing words (1157 candidates)
529. Tenses (6868 candidates)
530. Imperative (5323 candidates)
531. Prepositions (2988 candidates)
532. Gerund (118156 candidates)
533. Find the correct word (5090 candidates)
534. Haber/hacer (3516 candidates)
535. Pretérito indefinido (45381 candidates)
536. Subjunctive present/Present (5546 candidates)
537. Participes passés irréguliers (25874 candidates)
538. Present : To have -> haber - tener (2865 candidates)
539. Quantities (5187 candidates)
540. Superlatives (9104 candidates)