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

541. Dream Holiday 1/2 (2387 candidates)
542. Can't help or Prevent (3205 candidates)
543. Can/could/may... Must/have to... (27265 candidates)
544. Too much ... Much too... (8319 candidates)
545. May, Might, Should... what they mean... (24993 candidates)
546. Expressing Uncertainty : may-might-must... (21395 candidates)
547. When, While, Till etc, expressing time. (5740 candidates)
548. Whereas, Unless, Contrary to : contrasts (32246 candidates)
549. Like - As - and others... (3910 candidates)
550. Surprise...Surprise ! ... 2/2 (1127 candidates)
551. Surprise ...Surprise!... 1/2 (1685 candidates)
552. To sit or to sit down/ To stand or to stand up (2262 candidates)
553. Up and Down (2284 candidates)
554. Intention and refusal. (2393 candidates)
555. Agree or Disagree (13240 candidates)
556. How to make wishes... (5203 candidates)
557. Though/ in spite of ...Concession (43764 candidates)
558. How to express consequence (10292 candidates)
559. A/An - how to use (23667 candidates)
560. Direct and Indirect Interrogative forms ... (19344 candidates)