Put the sentences (a-c) in the correct order, then fill in the blank to make a logical text.
I have been on an unforgettable summer course in America. ______
a. The most special experience was my visit to the top of Rockefeller Centre because I could view the whole city below.
b. In the evening, we played board games and billiards.
c. We had an enjoyable campus tour, attended English classes, and joined team activities.