what happened in september 9,2001?

(what happened in the end? what happened ____the evening of september 1st ,2011 at on i it happened ____ the morning ____ September 10,2006.A in,on 翻译； what happened?she asked in surprise "What happened?"she asked in surprise.翻译 What will be happened in 10 years? what happened what has happened What happened in that class probably reflects what is happen What happened in China in the p____ fifty years? what happened/what was happened/what is happened/what happen Can you i______ what happened in my dream last night? Nobody knows what （ ）in the future. A.happened B.