我知道,except后面可以接“疑问词”引导的从句。如:He never came except when he was in trouble.I know nothing about the accident except what I read in the paper.同时我知道,except后面也可以接“不定式”。如:He hardly spoke except to say hello.She seldom goes ...
现在分词的完成式作状语通常都是表示其动作发生在主句动作之前,感觉此时的主句谓语通常都是用一般过去时。如:Having bought our tickets, we went into the theatre. 我们买好票后就走进剧场。Having packed up her things, she went to book her ticke...