therefore 和so
问题描述：
therefore 和so
this morning I got up late._______,I was late for school.
A.so
B,therefore
为什么勒?顺便讲一下so 和therefore 的区别
答
so是用于口语及一般文体,推论一般不严格,如：He told me to do it and so I did it.而therefore就比较正式,推论比较严密,本题就是这样了,因为睡得晚,因此迟到了,两者之间是有比较严密的关系的,所以要用therefore