72.Reach the bottom of the barrel: use up/run out of
73.Resign one’s post:/quit;辭職
74.Ring a bell:聽起來很熟
75.Run off/copy
76.Sign up for/join in/register
77.Sneak up on sb.頭頭接近,靠近
78.Take …for granted:相當然地認為
79.Take one’s time;從容不迫
80.Take one’s word:。/believe in sb./trust sb.