______in a long queue, we waited for the store to open to buy a New iPad. [ ]

_______ , English teachers must passthe oral and written tests

Both parents and teachers work hard at either preventing failure or protecting the children from the knowledge_______ they have failed.

依次填入下列横线处的成语，最恰当的一组是（ ）我非常喜欢《百家讲坛》这个栏目，特别是易中天先生与那些爱出风头、喜欢__________的人不同，他以故事说人物，以人物说历史，以历史说文化，以文化说人性。三国确实是让人神往的，文人向往的是三国时代，民众喜欢的是三国故事。易中天对三国故事了如指掌，讲得___________，对三国的研究非常深入，一些学术问题___________。

Bill opened the door to Harold and ________ him with cries of welcome. [ ]