这道题为什么选这个答案After ( ) seemed a long time, an iceberg was in sight in the distance. 答案给的是what ,难道there,it 不对吗?为什么呢

问题描述:

这道题为什么选这个答案
After ( ) seemed a long time, an iceberg was in sight in the distance.
答案给的是what ,难道there,it 不对吗?为什么呢

After用在时间上是介绍,后面应该跟定语从语