各省市通讯费补贴标准:Thy do not tall him中为什么用do 不用are？He will be early for the party.为什么用be?

Thy do not tall him中为什么用do 不用are？He will be early for the party.为什么用be?还有`````` Thy do not tall him中为什么用do 不用are？He will be early for the party.为什么用be? 1，why do not you practice the piano？2，Tell him the news after I come。 反意疑问句：I told him not every student could do it,_______? I (not see)him since1995 What did your boss say to him ?中为什么不用do而用did? I do not tiank you are an man 这里的do not think 在句子中有什么作用 in order not to do sth中not 的位置对吗 The man is not very tall or short . He is --------- I (not see)him since 1995.