tests by here4u with the online test builder (627 tests)

541. May, Might, Should... what they mean... (24883 candidates)
542. Expressing Uncertainty : may-might-must... (21288 candidates)
543. When, While, Till etc, expressing time. (5704 candidates)
544. Whereas, Unless, Contrary to : contrasts (31952 candidates)
545. Like - As - and others... (3887 candidates)
546. Surprise...Surprise ! ... 2/2 (1121 candidates)
547. Surprise ...Surprise!... 1/2 (1674 candidates)
548. To sit or to sit down/ To stand or to stand up (2260 candidates)
549. Up and Down (2281 candidates)
550. Intention and refusal. (2390 candidates)
551. Agree or Disagree (13142 candidates)
552. How to make wishes... (5150 candidates)
553. Though/ in spite of ...Concession (43512 candidates)
554. How to express consequence (10279 candidates)
555. A/An - how to use (23642 candidates)
556. Direct and Indirect Interrogative forms ... (19241 candidates)
557. After, Afterwards and Then (18940 candidates)
558. Any and its compounds (7302 candidates)
559. Sleep- Sleepy- Asleep (1949 candidates)
560. Let's get married... (4221 candidates)