his mother said quietly 他妈平静的说.
I thought you were looking forward it.我以为你盼着它呢.（实际上你没有）
Tim could tell his mother was becoming unhappy.Tim 能判断出他妈变得不开心了.也就是说，tell在这是“判断”的意思么？tell 在这儿表示tim 通过各种情况推断出，而且他确信他的推断是正确的。