our company has offices in 50 countries____(世界各地)

Mary is___only girl who has been to Amexian in our company A she has been working in our company since 2012.6这句话有没有语法错误? our company -----a 50% increase in production this year There are some offices in front of our classroom(改为一般疑句) Our classrooms and teachers offices are in the buildings.这个句 in offices和in office At our company,2011 has been great so far 英语语法：An important objective(purpose)for our company has been offices? our company ____ a 50% increase in production this year.A.on Why areyoq interested in working in our company? ▁▁in 1950,this company has a history of over 50years.(found)