为什么he is要缩写成he's

为什么he is要缩写成he's 英语缩写!【比如 He is =He's】之内的, he's的缩写 He is a new student能缩写成He‘s a new student.我看书上都不是缩写的? he is缩写 he is的缩写 He‘s 是那个缩写 是指He has 的缩写还是He is的缩写He‘s 是那个缩写He has 的缩写还是He is的缩写 he was 可以缩写成he's吗? HE`S是什么的缩写是he is 还是he has At the moment,he's in Madrid.句中缩写he's应该是he is还是he was? he is的缩写形式 he is的缩写是什么? 请问,这里的he's是什么缩写来的He's worked in the cinema all his life.为什么要用he has 呢 Is he a student?No,he isn't.(不能用No,he's not.) 为什么 You are 在句末能不能缩写.为什么哪些词语在句末不能缩写,请一一列举 he's like a father to me中的he's为什么要加is 【He's just had some peas.】的 He's 是什么的缩写啊?急Has he had any beans or peas?(He)He hasn't had any beans.He's just had some peas.【He's just had some peas.】的 He's 是什么的缩写啊?是 He is 还是 He has 的缩写吖? 请教在英语里he's的非缩写形式是he is.和另一个是he has对吗? he is 18 years old.为什么year要加S