happen 用被动式吗?happen用进行式吗?
happen to ,happen 怎么用?
happen 固定搭配 :是sth happened to 前面happen一定要用过去式的形式吗
用happen造句
为什么有时happen用助动词进行提问,而有时则不用?如:What will happen...What happene
用happen to do和happen to sb.造句
第8题翻译,用happen to happen on的
用happen,happening,happened造句
happen 有 sth happen to sb或者sb happen to do sth 那么occur同样的用法吗
what happened to him yesterday.为什么要用happened?happen可以吗
take place 和happen 可以用在have been的结构吗
happen to sb.有这种结构吗?
take place . happen能用被动语态吗?