(用所给单词的适当形式填空）1.SARS is a serious kind of ----- （i l l)

(用所给单词的适当形式填空）1.SARS is a serious kind of _____ （i l l)2.it 's _____(possible)for a person to move a building3.my daughter always feels ____(stress) out.4.luckily,our ____ (perform) is very successful.