tests by hidalgo with the online test builder (899 tests)

581. Mucho / Muy (25286 candidates)
582. Indefinite preterit (14283 candidates)
583. False friends (1122 candidates)
584. Verbs (1725 candidates)
585. Pronouns (5934 candidates)
586. Time clauses (11653 candidates)
587. Reflexive pronouns (1065 candidates)
588. Verbs (1511 candidates)
589. Phrasal verbs (1802 candidates)
590. Adjective (7537 candidates)
591. Pronouns some/any (4559 candidates)
592. Articles (12063 candidates)
593. Personal subject pronouns (1731 candidates)
594. For/since (2969 candidates)
595. Mots se terminant en -ill(i)er, -illée .. (1496 candidates)
596. Subjunctive (10126 candidates)
597. Accent circonflexe ou pas ? (18842 candidates)
598. Ever/already/before/yet (35673 candidates)
599. Infinitive or -ing (10000 candidates)
600. Articles (2722 candidates)