Topic 1: Increasing travels between countries enable people to learn different cultures or to increase tension between people from different countries

 
117.
 
Remarkable  + 
achievement,  change,  coincidence,  discovery,  effect,  fact,  feat,  feature, 
humour, improvement, man, performance, similarity, success, tolerance, 
woman
 
118.
 
Reverse 
+ 
direction, effect, order, process, situation
 
119.
 
Rural 
+ 
area,  community,  development,  district,  economy,  environment, 
landscape, people, population, society
 
120.
 
Serious 
+ 
accident,  attempt,  attention,  blow,  business,  challenge,  concern, 
consequence, consideration, crime, damage, danger, doubt, effect, error, 
flaw, harm, illness, injury, issue, matter, offence, problem, question, risk, 
thought, threat, trouble
 
121.
 
Social 
+ 
background,  behaviour,  benefit,  change,  class,  contact  context, 
development, event, group, interaction, issue, justice, life, order, policy, 
problem, relationship, responsibility, skill, status, welfare