Theprimaryschool____(在孩提时代我在那里学习)hadverylittleequipment.
Forexample,itisestimatedthatSASturnoverrateis4percentcomparedtotheindustrynormofmorethan20percentperyear.
WhileIwaswaitingforher,Ikilledtime____lookingintheshowwindows.
题目：Describinggraphs
I____comeyesterday,butIcouldnot.
