Answer:
Christi will not join the chorus, although the director has extended a personal invitation.
Step-by-step explanation:
Transition words serve us to connect words/phrases/clauses/sentences. Depending on what transition word we use, we can get different meanings. For example, transition words like: even though, although, but, however - may be used to show a contrast or a contradiction, like in the given sentence.
Some of the other transitional words we have: likewise, as well as, to say nothing of, indeed, for this reason, thereupon, as shown above, straightaway, in this instant, adjacent to, in spite of and many more.