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

501. For/Since: second step... (3939 candidates)
502. For/Since: first step ... (6999 candidates)
503. Make someone do/ Be made to do (10233 candidates)
504. Like/to like/likely... (4861 candidates)
505. Let's get dressed... (6392 candidates)
506. Other - The others - Another (4123 candidates)
507. Dream and Back to reality 2/2 (4267 candidates)
508. Dream Holiday 1/2 (2353 candidates)
509. Can't help or Prevent (3120 candidates)
510. Can/could/may... Must/have to... (26270 candidates)
511. Too much ... Much too... (8231 candidates)
512. May, Might, Should... what they mean... (23564 candidates)
513. Expressing Uncertainty : may-might-must... (19727 candidates)
514. When, While, Till etc, expressing time. (5410 candidates)
515. Whereas, Unless, Contrary to : contrasts (30165 candidates)
516. Like - As - and others... (3779 candidates)
517. Surprise...Surprise ! ... 2/2 (1104 candidates)
518. Surprise ...Surprise!... 1/2 (1649 candidates)
519. To sit or to sit down/ To stand or to stand up (2224 candidates)
520. Up and Down (2195 candidates)