why thanks

tell me why,thanks please tell me why ,thanks tell me why?which answer?thanks trantlate it and tell me why thanks! Which one to choose?Why?Thanks. the answer is B,tell me why.thanks thanks的缩写是thx还是tks?why? 帮忙解决几道英语语法题 tell me why,thanks thanks for . 后面加do还是doing,WHY? why?这个单词啥意思,不懂英文,thanks! the answer is D,tell me why ,thanks thanks for your kindness还是thanks your kindness还是都可?why?