scientists believe native Americans arrived by crossing the land bridge that connects siberia to what is now Alaska more than 10,000 years ago.这句话为什么是what不是where
where不能引导名词性从句中的主语从句对吗
可以引导主语从句,本句中,从句没有主语,所以得优先保证从句的主谓宾。
知道了where不能引导宾语从句吧