He__in IBM to sell computers for five years and is now running a successful business of his own!Aworked Bhas been worked 选哪个 为什么

来源:学生作业帮助网 编辑:作业帮 时间:2024/06/17 23:20:59

He__in IBM to sell computers for five years and is now running a successful business of his own!
Aworked Bhas been worked 选哪个 为什么

答:B has been worked
释:因为句中for five years.for+一段时间,时态为现在完成时.