A door was locked．A big stone came and hit the door．But he couldn’t ___it．Later a key came．He ____the lock and the door opened．The stone was very ____ that the key could open it easily．He asked the key: “_____did you do that?” ？The key__65__him and said: “Because I understand its _____．”
Life is just like this．_____we want to solve a problem, we must understand it ____．If we want to make friends with people, we must understand ____．If we want our parents to _____ us, we must first know their hearts．We must know what they hope for．

A．touch B．open C．reach D．get

A．got out B．got to C．got in D．get up

A．worried B．thankful C．surprising D．surprised

A．Why B．How C．When D．Where

A．smiled to B．talked about C．agreed with D．helped

A．problem B．work C．heart D．head

A．If B．Because C．Although D．But

A．then B．later C．finally D．first

A．us B．others C．them D．me

A．love B．understand C．remember D．help