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wAshAppEnEDʲôʱ̬

was happended be+ʵĹȥִʹɱʱ̬.beĹȥʱwas +ʵĹȥִʹɹȥʱʱ̬

happenǶ еʱ̬ ȥʱ--happened ڽʱ--be happening һʱ--happen(s) һʱ̬--have(has)happened һ㽫ʱ--will happen

Ӧit was happenedı﷽ʽӦʱ̬.Ѿͱʾ.ùȥʱ.

ȥʽwas,ʽis.

ʱ̬is,ȥʱ̬was

һȥʱ.

̬ A,was happened

ǰӶǴ!1.what has happened ʱ̬2.what was happening ȥʱ̬ ͨҲӦ˵:what happened/happens һȥһʱ̬ Լto ֻʱ̬ͬ,÷һ.

ʾָwhat when who how which wherewhʴʶ ,شʱֻҪʲôʲô.ľǡʲô,ڼ ġʾ. ˵,What happened? ʲô?(ȥʱ) What

had happenedڹȥʱ̬,has happenedʱ̬.ǰǹȥʱ,ʱ.ʱ̬,¸2ĺϸ,ÿտԲһ.

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