I still don't know what()while I was away from home.

问题描述:

I still don't know what()while I was away from home.
a.had happened
b.happened
为啥答案选b,它应该是对现在造成了“我不知道”的影响啊?干嘛不选A
Mrs King kept weighing herself to see how much()she was getting.
a.heavier
b.the heavier
为啥选A啊?我题目都看不懂.

如果对现在造成了影响,应该用have happened而非had happened,后者是对过去造成影响,根据句中时态don't看是一般现在时,后推一格应为过去时.Mrs King一直称体重,看看自己重了多少.the heavier表示两者间的比较,比如我...