—It's getting late. I really _____go now, my daughter is home alone.
A:may
B:can
C:must
D:dare
分式b2a,x3b2,14ab的最简公分母是( )
You'd better ________ upstairs and tell the children not to make so much noise.
读课文《狐假虎威》,读句子,回答问题。
森林里的野猪啦,小鹿啦,兔子啦,看见狐狸大摇大摆地走过来,跟往常很不一样,都很纳闷。再往狐狸身后一看,呀,一只大老虎!大大小小的野兽吓得撒腿就跑。
思考: “大大小小”指的是什么,表现了什么?
因式分解:x2-4(x-1)