The reason ()she gave for not being present was () there was heavy traffic on her way here

题目

The reason ()she gave for not being present was () there was heavy traffic on her way here
1./ ,because 2.why ,because 3./ that 4.why ,whether
为什么2不可以?

答案

1,在英语的同一个句子中why和because不能连用.
2,如果你第一个空想要用why的话,那么第二个空要用that
3,第一个空可以填why/that或者是不填.