you'd是you had; you would哪个的缩写?

you'd是you had; you would哪个的缩写? you'd rather是you would rather的缩略you'd rather是you had rather的缩略 you'd better是you would better还是you had better的缩写?两者什么区别? you'd better hurry.这个句子不懂,是HAD么? you'd better not .中的('d)是什么的缩写是had吗?为什么这里用had? you'd better.=you had better吗?为什么? you would better you had better 都什么时候用,意思一样吗,you'd better do sth是哪个缩写? You'd better (w.)your coat you‘d better finish the work today这句的you’d是you had吧,那为什么用had呢? you'd better not 反意疑问句如：you'd better not speak in Chinese.___ _____?是 hadn't you,还是had you. You're w()You're w( ) You had better not smoke here,( 为什么后面接的是had you而不是will you .You seldom had time for writing,______?:did you B:didn't you C:do you D:don't you You two had Sex You two had Have you had sex? you had better make you had me at