是be busy doing sth还是be 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? 是busy doing sth.还是busy to do sth. be busy doing sth 例句 be busy in doing sth 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 with sth 与be busy doing sth busy doing sth还是 busy to 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 BE BUSY DOING STH 是主系表结构吗 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? be busy doing sth 与be busily doing的区别 be afraid of 是doing sth还是do sth be busy doing sth/with sthbe busy doing sth 后跟动词be busy with sth 后跟名词麻烦谁能造个句子 成功做某事是be succeed doing sth 还是 be successful doing sth 还是 succeed doing sth?