Mr Green is busy to sell his car these days.哪里错
问题描述：
Mr Green is busy to sell his car these days.哪里错
答
Mr Green is busy selling his car these days#
Mr Green have been busy selling his car these days#
答
be busy doing sth.或者be busy with sth.
所以改为Mr Green is busy selling his car these days。
答
to sell 改为 selling
busy doing sth 忙于做某事
答
把to sell改为selling
解析：be busy to do是忙着要去做某事；be busy doing忙着在做某事
翻译：格林先生这些天一直在忙着卖他的车
绝对正确，希望帮到你，祝学习进步