用方框内词的适当形式填空。

life,      fast,    five ,  turn on,   hard

 
Many people lost their ______________in the terrible earthquake .
--Where will we have our English party this afternoon?
-- In the teaching building on the          floor.
It’s raining _______________, so we can’t have sports meeting on time .
Why not ________________ the lights ? It’s so dark here.
Light travels ______________ than sound .