从句what 和whenleif followed biarni's directions and sailed to what is believed to be the coast of present-day canada.此句中的waht作主语,可是为什么不能用where呢?
问题描述：
从句what 和when
leif followed biarni's directions and sailed to what is believed to be the coast of present-day canada.
此句中的waht作主语,可是为什么不能用where呢?
答
问老师或同学
答
what就是that where
what要在句子里充当成分的
where不行