tests by here4u with the online test builder (678 tests)

521. Else and compound words (3736 candidates)
522. What, which and all that (7050 candidates)
523. Possessive idioms (3120 candidates)
524. Possessive or genitive Case (27633 candidates)
525. Possessive adjectives and pronouns. (25826 candidates)
526. Adjectives: where to place them? (17703 candidates)
527. Adverbs: Where to place them? 2 (5090 candidates)
528. Adverbs: Where to place them? 1 (12100 candidates)
529. For/Since: second step... (4027 candidates)
530. For/Since: first step ... (7172 candidates)
531. Make someone do/ Be made to do (10693 candidates)
532. Like/to like/likely... (4989 candidates)
533. Let's get dressed... (6497 candidates)
534. Other - The others - Another (4195 candidates)
535. Dream and Back to reality 2/2 (4314 candidates)
536. Dream Holiday 1/2 (2384 candidates)
537. Can't help or Prevent (3193 candidates)
538. Can/could/may... Must/have to... (27071 candidates)
539. Too much ... Much too... (8304 candidates)
540. May, Might, Should... what they mean... (24823 candidates)