有关被动语态It has been estimated that if the bridge were packed w

英语语法1.it has been estimated that if the bridge were packed w 一个句子的语法It has been estamated that if the bridge were packed 虚拟语气:"If the bridge were packed with cars,it would…"请问were是不 六级真题it has been estimated that theearth's surface temperatur 新概念英语3 17课.里面有句话.是这样的 it has been estimate that the bridge w It's a pity that theconcert has been cancelled.是被动语态吗? 新概念中的句子分析if the bridge were packed with cars 中用were是不是表虚拟,为何 The ice has been melted .为什么这个现在完成时要加been,been不是被动语态吗? It is estimated that by 2010 50% of the world's population w It has long been known that the hunting scenes depicted on w 翻译It has been said for many years that if the first thing yo 关于被动语态Most broadcasters think that TV has been unfairly crit