是busy doing sth.还是busy to do sth.

是busy doing sth.还是busy to do sth. 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? busy doing sth还是 busy to do sth bu busy with /on sth busy doing sth 是engaged busy是什么词性? be busy doing sth 中的busying是动名词还是现在分词,这里面得busy是形容词还是动词? be busy doing sth 例句 be busy in doing sth 是have difficulty doing sth还是have difficult doing sth? be busy with sth 与be busy doing sth 是use sth for doing sth还是use sth doing sth jean is busy cooking in the kitchen是不是错句?不是be busy doing sth?为什么没有sth?be busy doing是谓语动词? give up是 doing还是do sth? 英语 翻译 be busy doing sth 有没有be busy with doing sth? 用be busy doing sth.句型造句