That’s all right. It can’t be helped. 當中的 That 是否解那件事?即 The train was delayed. 而 It 是否是 That 的代名詞,解這?可不可以改寫成:It’s all right and it can’t be helped. 或 That’all right and that can’t be helped.
有時會直接用 It,不用 That
如 It doesn’t matter.
It ’s nothing.