下列词语书写完全正确的一项是（ ）

Never put the medicine________the reach of your little child in case he takes it by mistake

mericans live on credit, and their quality oflife is measured _________ how much they can borrow, not how much they canearn

Hey! Everyone in the office was at thedinner party in honor of Mr. Charles except you. What happened— I ______ after Mike, my colleague. He wasbadly ill.

Mr. Park, I know I am late, but please allow me to explain it to you, ________？