LuJ ialei, 14, from Hangzhou Foreign Language School, won____first place in the CCTV Chinese Character Spelling Contest（中国汉字听写大会）．

It is still underdiscussion_____ the old bus stationshould be replaced with a modern hotel or not.[ ]

Things should________here before you enter the Great Museum．

A successful life is a life ____challenges are met and difficulties overcome.

Global warming has become a serious problem, ______ we must find solutions.