根据汉语或首字母提示补全单词
let's_(划分)our class into four groups
did you_(注意到）anyone leave the house
the factory p_ about 900 cars a year
i don't like drinking lemon juice because it's too s_
we know confucius was one of the greatest tinkersin_(古代的）china
James found two policemen coming t_ him
this cup in made of _(金属）
her friendship with david _(发展）slowly last year