几道英语填空题,

问题描述:

几道英语填空题,
Watch out!It could be _______ .(九个字母的单词,结尾是s)
I like to add so I like _______ .class.(四个字母的单词)
She always wins.She's _______ .(十一个字母的单词,开头是o,结尾是g)

dangerous 危险
math 数学
outstanding 杰出的