It hasn't got four legs.
Has it got four legs?
It doesn't eat other animals.
Does it eat other animals?
It's not smaller than a lion.
Is it smaller than a lion?
It can't run very fast.
Can it run very fast?
否定句:助动词(有do,does,did)或情态动词(有must,can,should,may,shall等)或系动词(有is,are,am)改成否定的就好了,就是加个not
一般疑问句:把助动词拉到句子开头,其他单词语序不变.