What controls must you never use in combination?
(i) 2 and 4.
(ii) 4 and 8.
(iii) 4 and 7.
Keyboard: press A to D to answer and Enter for the next question. Your score is kept on this device only.
(i) 2 and 4.
(ii) 4 and 8.
(iii) 4 and 7.
Keyboard: press A to D to answer and Enter for the next question. Your score is kept on this device only.