• 所有问题

    • 什么时候when sb do sth 可变成when doing sth

    when只是用来举例的一个连词 如果换成since是不是就不行？
    为什么？
    哪些行哪些不行？

    举报该问题
    推荐答案   2008-03-02
    当前后主语一致时可以这样.
    例如:When watching TV, he got the news.
    温馨提示：答案为网友推荐，仅供参考
    其他回答
    第1个回答  2008-03-02
    两个本身语法有错误。如果你想表达的意思单纯是什么时间想做某事改成进行时态，i am doing something now 或i was doing …
    第2个回答  2008-03-02
    不是吧，貌似是独立主格或是前后主语一样时的省略形式，有例句么本回答被网友采纳
    相似回答
    when sb. do sth.和when sb. doing sth. when do sth. 和when doing s...答：when sb. do sth 是说当某人做某事，也就是时常做的，请看Does when doing sth 是说某人正在做某事，不一定是习惯做的。强调“正在”，请看Doing 那给你举例子好了。She usually open the door when she watchs TV She opened the door when she watching TV ...
    你好:when引导从句用过去时,主句还可以用过去完成时,和主从句都用过去...答：主句用过去进行时( sb. was doing sth. )+when从句( when sb. did sth. ):或: 主句用一过时(sb. did sth. )+when从句用过进时( when sb. was doing sth. ):表示主从句的动作同时发生,如:Mother was preparing supper when I got home yesterday evening .When the students were h...
    大家正在搜
    when sb is doingwhen while doingwhen doing sthwhen sb do sthwhendoingsth怎么造句bedoingsthwhen造句take sth with sbremind sb to dowas doing when
    相关问题
    when sb. do sth.和when sb. doin...
    when sb doing sth，sb doing sth...
    when sb. do sth. 还是 when sb. d...
    When/after/before sb do sth 有这...
    before什么时候加doing sth./sb. do s...
    when sb doing sth 正确吗
    感官动词+sb/sth+do/+done/+doing/+t...
    see sb do sth 和 see sb doing s...