c (sb) suddenly fall down because of lIness e He collapsed with a heart attack while he was dancing o d sit suddenly because too tired o I was so exhausted when i got home, i just collapsed on the sofa⚫ c.(sb) suddenly fall down because of illness ⚫ He collapsed with a heart attack while he was dancing. ⚫ d.sit suddenly because too tired ⚫ I was so exhausted when I got home, I just collapsed on the sofa