This is a letter from Tom to Mary为什么介词不用for?from...to...不是从某地到某地吗?

this is a test letter? this is a test letter? this is letter A.改为否定句 this is a letter改为复数句 here is a letter for you和this is a letter for you 的区别 This is a letter from a boy called This is _____（definite) a letter from your pen-friend This is a red-letter day for Tom.. This is a letter from mom to john letter is this grandma from your a )连词成句 用is,letter,A,this（.）组成句子. This is a UFO改为否定句还有This is a letter A 改为否定句 Which letter is a what letter is a Letter A is( )letter in the alphabet This is letter F(对 letter F提问） Walk --------this road ,you ’ll find the hospital ------the school A .away；in fro this letter is from my pen p___