宠物怪兽还有赛罗:谁能帮我看看,有没有错误？

This is to certify that Mr. xx, has been working in XXXXX Co., LTD. as General manager since 1996.

The company has decided to send Mr. xx to Vienna for
4-day meeting . After the meeting, he will come back to the company and resume his office position in XXXX Co., Ltd.

He worked as General manager

After finishing the Group Meeting

Mr. xx, has worked in XXXXX Co., LTD. since 1996. He is General manager.

The company has decided to send Mr. xx to go to Vienna for 4 days attendance in the Group Meeting . After finishing the Group Meeting, he will come back and continue his job in XXXX Co., Ltd.

句子应简明扼要

This is to certify that Mr. xx, has been working in XXXXX Co., LTD. as General manager since 1996.

The company has decided to send Mr. xx to go to Vienna for 4 days to attend the Group Meeting . After his finishing the Group Meeting, he will come back to the company and continue his job in XXXX Co., Ltd