1.different是形容詞,這里要填的是它的名詞形式,又因?yàn)檫@里是指兩個(gè)單詞的區(qū)別,所以在用復(fù)數(shù).因此,要填：differences
2.thing不可以用在疑問(wèn)句中,所以,這里要填anything.
anything
1) 任何事情/東西,可以用在肯定句/否定句/疑問(wèn)句中.
如:You can take anything you like.Do you have anything to say?
There is not anything you like here.
2)something 的疑問(wèn)/否定形式.
如：--Is there anything in the box?--No nothing.
He has not anything to do today.
3.從A句中可以判斷出時(shí)態(tài)為現(xiàn)在時(shí)（從does看出）,所以,B句的時(shí)態(tài)要用現(xiàn)在進(jìn)行時(shí),又因?yàn)橹髡Z(yǔ)是“A group of chidren ”,為第三人稱(chēng)復(fù)數(shù),那么,這里要填的是celebrate的現(xiàn)在進(jìn)行時(shí),即為are celebrating.