English Proficiency Certificate for XXXXXDear Sir or Madam,I have extensively communicated with XXX in a skype interview, with regular email exchange and during preparation of the research proposal to discuss scientific details. In the course of our communication, she proved am excellent command of English both written and spoken. Within the Institut fr Technische und Makromolekulare Chemie at RWTH Aachen University, English is the major working language. All present
