作业帮be busy doing还是be busy to dokuai
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be busy doing还是be busy to dokuai
be busy doing还是be busy to do
kuai
be busy doing还是be busy to dokuai
简单说doing就是已经做了或正在做,而to do是还没有做
be busy with doing sth or by busy with sth 这里的with省略了，习惯用法 be busy doing 是固定词组的用法：相似的还有：be worth doing be
be busy doing sth.忙于做某事
be busy with sth.忙于做某事
be busy doing zheng强调正在做 be busy to do 强调将要做
be busy doing 忙于做某事
是be busy doing sth.和be busy with sth.以至于be busy to do sth.根本就没有。
be busy doing sth. 或者be busy at/with sth
be busy doing sth.忙于做某事
be busy with sth.忙于做某事
be busy with doing sth or by busy with sth 这里的with省略了，习惯用法
be busy doing sth 忙于做某事
be busy with 忙于某事
没有be busy to do
be busy to do是忙着要去做某事
be busy doing忙着在做某事
be busy doing sth忙于做某事,be busy to do sth不存在这个结构，谢谢
be busy doing还是be busy to dokuai
be busy to do 还是 be busy doing
be busy doing造句
be+busy+doing=be+( )+(
be busy doing 和 be busy in doing 的区别?
be busy with doing 与be busy doing 区别
he is always busy___ (work)是用be busy doing sth还是 be busy with sth
是be busy doing sth还是be busy to do sth?
be busy加什么?be busy是接doing sth还是to do sth?
be busy doing等于什么
be busy doing sth 例句
be busy in doing sth
be busy doing 过去式+造句
BE busy with 还是 BE busy to
be busy with sth 与be busy doing sth
为什么是be busy doing而不是be busy to do
be busy doing sth 与be busily doing的区别
be busy in 的用法?它和be busy doing, be busy with有什么区别?