The key to exercise solutions in chapter Writing 6 - Reports for the textbook Outcomes Upper-Intermediate - Student's Book with authors Hugh Dellar and Andrew Walkley from National Geographic Learning
Question
Look at the words in bold in the report on page 160. Then discuss the questions in pairs.
Answer
However
while, even though, despite
while, even though (both could be used in either sentence)
despite
after the first clause following while, even though; before despite; after however