Complete the review by filling in ( 1 ) to ( 5 ).
問1(a) ( 1 )
① All the camp participants quickly became good friends.
② Most campers stopped enjoying the fun activities.
③ One of the campers surprisingly changed his attitude.
④ The camp counselor managed to solve a serious problem.
問1(b) ( 2 )
① Christopher continued to behave very badly.
② Dylan could understand how light is reflected.
③ Oscar played a leading role in group discussions.
④ The counselor reconsidered her viewpoint.
問2 ( 3 )
① just unhappy because he was unable to take part in all the activities
② probably nervous as he was staying away from home for the first time
③ smarter than most campers since he tried to hide his honest opinions
④ thoughtful enough to have brought games to share with his friends
問3 ( 4 )
① avoid a difficult situation
② discuss ethics and rules
③ embarrass the others
④ try to be even friendlier
問4 ( 5 )
① get detailed information about summer outdoor activities
② read a moving story about kids’ success in various sports
③ remember their own childhood experiences with friends
④ understand the relationship between children and adults
1 ③ 2 ① 3 ① 4 ① 5 ③
出典：共通テスト試行調査2017 - 大問6