Can I say,<br/><br/>(a) He felt unforgettable.<br/><br/>(b) He heard the sound of the rescue team.<br/><br/>(c) They realised that the lift had stopped.<br/><br/>(d) Suddenly, the light became dark.<br/><br/>(e) They took a lift for going up to the 5 th floor.<br/><br/>(f) When the lift was going up (to) the 5 th floor, it stopped.