tests by here4u with the online test builder (650 tests)

621. Two simultaneous actions in the past ... (12609 candidates)
622. Cause ? Aim? Not mixing the two concepts ... (22841 candidates)
623. Absence of obligation (25296 candidates)
624. To talk someone into / out of doing something ... (2547 candidates)
625. Difficulties in Reported Speech (15528 candidates)
626. Will and Would: a little further (7232 candidates)
627. Used to / to be used to (34426 candidates)
628. Present continuous (12240 candidates)
629. Past simple and continuous (9110 candidates)
630. Express future (12181 candidates)
631. Express future (7227 candidates)
632. Increase your vocabulary : 2-4 (3436 candidates)
633. Negatives and semi-negatives (5663 candidates)
634. Sequence of tenses : The Student and the Rose (3) (3911 candidates)
635. Sequence of tenses : The Student and the Rose (2) (en modif (4874 candidates)
636. Sequence of tenses : The Student and the Rose (1/3) (18271 candidates)
637. Une histoire de More ou Less (6563 candidates)
638. Tenses in a text : Billy Weaver (2) (5004 candidates)
639. Increase your vocabulary : 2-3 (2253 candidates)
640. Tenses in a text : Billy Weaver (1) (15597 candidates)