tests by hidalgo with the online test builder (908 tests)

641. Expressions and body (1908 candidates)
642. Phrasal verbs (6109 candidates)
643. Pretérito perfecto/indefinido (18314 candidates)
644. Subjunctive imperfect (7331 candidates)
645. Like/as/how (20328 candidates)
646. Still/again etc... (1688 candidates)
647. Until/so far as to ... (2140 candidates)
648. For, During or While (2301 candidates)
649. For, Since, Ago (5481 candidates)
650. Words (6028 candidates)
651. Question words (2637 candidates)
652. Correct an e-mail (14556 candidates)
653. Present simple or continuous (5038 candidates)
654. Ser/ Estar (8984 candidates)
655. Sequence of tenses (7504 candidates)
656. Verbes réguliers et irréguliers (6177 candidates)
657. Giant waves (1434 candidates)
658. Juan GELMAN (1052 candidates)
659. Aunque (25927 candidates)
660. Gerund (1715 candidates)