Bill put his hands behind his back,------nobody could see his hands.A so B andC orDbut
问题描述：
Bill put his hands behind his back,------nobody could see his hands.A so B andC orDbut
答
A
比尔将后放到后面,这样就没人可以看见他的手了.and和 so的区别是什么？都什么时候用？so连接的俩个句子，往往前面是事件的原因，后面则是事件会产生的后果；而andM没有这个作用，只是连接俩个相似意思或结构的并列句型