语法题目疑惑It has been raining for a few days ,we must do somethi

答：分号与逗号很相近,可能是分号误成逗号了。keep sb。doing sth。是使某人一直做某事。keep sb。from doing sth。才是阻止某人去做某事。=prevent /stop sb。from doing sth。然而后两个中的from以省略,意思不变,这是要注意的。改：It has been raining for a few days ； we must do something to keep the roof from falling。译：已经下了好几天的雨了。我们一定要采取措施防止房顶倒塌。 再问： mike 老师曾说到 逗号不能连接两个句子 这种说法 您是否赞同呢？ 再答： 我赞同。