精选优质文档-倾情为你奉上CERTIFICATEDear Visa Officer,Ms. is the teacher of our school. She began to work in our school since 2015and has been in our school for 1 year. Now, she has been permitted to take a vacation from 11th Feb 2016 to 23th Feb 2016, and she will take a journey to your country for 13 days during this period. All the expenses including travel, board and lodging, and any miscellaneous expenditure would be borne by her. We hereby guarantee that Ms. Chenl