
To stop you must use number...
(i) 4 and 7.
(ii) 2 and 7.
(iii) 1 and 2.
Keyboard: press A to D to answer and Enter for the next question. Your score is kept on this device only.

(i) 4 and 7.
(ii) 2 and 7.
(iii) 1 and 2.
Keyboard: press A to D to answer and Enter for the next question. Your score is kept on this device only.