be busy in 的用法?它和be busy doing, be busy with有什么区别?
最佳答案：e busy doing sth.=be busy with sth.忙于做某事,如：I'm busy with my homework.=I'm busy d
busy的用法公式
最佳答案：e busy to do
be busy ding的用法及造句
最佳答案：应该是"be busy doing",意思是"正忙着做..."I am busy cleaning my room.我在忙着打扫我的房间.
up to sth 的用法和be busy doing有什么区别吗
最佳答案：e up to sth.胜任某事 hurry up to do 匆忙做某事 准备去做）be busying doing 忙于做某事(正在进行)
求这几个单词的词根、变化、用法exciting busy difficult dangerous fun boring
最佳答案：exciting（adj）令人激动的 ag；I am very exciting!busy（adj）繁忙的 ag; Today it is a busy day
be动词的用法比如 My father is always busy on weekdays 为什么要加这个is 可以不
最佳答案：My father is always busy on weekdays .期中是短语be busy比如：be interestingthey are enjo