英语语法问题he should understand me better than he does .想问 better

一个英语语法问题He is better than me at playing basketball是否等于He is He does better in chemistry than I.同义句 We know this town a lot better than he does 请问I know you better than he does.与I know you better than him he works more better than me 划分句子成分 Tom told me he[] much better than before i always get better than he does中的he does是什么,该怎么用? 仿照例句,根据回答写合适的问题.________?yes,he can play better than me.He's He plays basketball better than __ football.A.he does B.play He plays basketball better than __ football. A.he does B.pla He ___ singing than dancingA.does well in B.does better in C i always get better grades than he does,为啥要加does