请教！

Mr.Scott has a garage in Silbury.His _____ garage is in Pinhurst.
这句当中为什么横线处选择other，而不是another。

Mr.Scott cannot get a telephone for his garage._______he has just bought twelve pigeons.
(a) That is so (b)That is why (c)Because   (d)for
这里为什么选择B呢？