The continuous hazy(雾霾) weather in China has been affecting many people lately. We shouldn’t _____ in order to stay away from its harm.
①open the window to let outdoor mist(雾气) get into the room
②wash our hands after coming back home from work or school
③do morning exercises outside as often as possible
④get out of houses without wearing masks (口罩)
⑤pay more attention to eating healthily
A.①③④              B.①④⑤                C.②③⑤