have been down 和 have down 区别是?
have been down 和 have down 区别是?
down 与have been down的区别
have been down 意思
to have been pulled down,不定式的被动完成时态和having been pulled down
have been striking down和have been struck down 第一句有语法错误吗?最好有例
你能不能告诉我一下 什么have down啊 have been down啊 有什么区别 还有当出现when 、sinc
when you have been turned down
I have been down for two hours.句型转换 I have been down ---- --
sit down 和 have a seat的区别是什么,
I have been asked to have the tree cut down.
have the tree cut down和cut down the tree 区别在哪里?
have been doing,had been doing,will have been down是什么