be busy doing 是不是省略了in 应该是 be busy in doing 还有 上面两个跟be busy with 有什么区别么
问题描述:
be busy doing 是不是省略了in 应该是 be busy in doing 还有 上面两个跟be busy with 有什么区别么
答
如果后面搭配动词,用be busy (in) doing sth ;如果后面搭配名词或代词,用be busy with sth.如:
He's busy doing his homwork.
= He's busy with his homework.
答
就是没有IN不是省略,有be busy with sth的说法
答
是的
用法没区别
in强调状态
with强调伴随