she is ahead of other contestant.中的ahead 是副词可为什么跟在BE动词后

题目

she is ahead of other contestant.中的ahead 是副词可为什么跟在BE动词后
.,or is it?
is that so?
as the result后面加的是原因还是结果

答案

ahead 副词
be+形容词/副词 都是正确的
结果＋as the result of +原因
or is it ”（是.）还是.“表示两者中的选择
is that so?"是这样的吗?"表示对前面说的话的判断或者表示惊奇.
He will be ahead of others in English.
他在英语方面将超过别人.
Is life good to you or is it bad?
生活对你来说是好是坏?
Is that so?I'm so happy.
真的吗,我太高兴了.
He lost his sight as the result of the traffic accident.
因为那场交通事故他失明了.