he has already been to nearly every country in the world

问题描述:

he has already been to nearly every country in the world
句中,been的用法有时加to,有时不加to,请问什么情况下才需要加to?

加不加to不是看been,而是看后面的词,to表方向,every country前就要加to1)have+been +过去分词,构成完成式被动语态,例如:English has been taught in China for many years.(中国教英语已经多年.) 2)现在完成进行时...