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

Improve 
+ 
appearance,  chance,  education,  efficiency,  effort,  environment,  facility, 
health,  image,  life,  performance,  productivity,  quality,  safety,  service, 
situation, skill, standard, system
 
95.
 
Increase 
+ 
amount,  capacity,  chance,  demand,  productivity,  profit,  rate,  risk,  sale, 
share, tax
 
96.
 
Initiate 
+ 
action,  campaign,  change,  contact,  debate,  development,  discussion, 
investigation,  policy,  programme,  reform,  request,  research,  review, 
study, talk 
97.
 
Integrate 
+ 
approach, policy, service, technology 
98.
 
Lay 
+ 
base, emphasis, figure, foundation, groundwork, hand, stress 
99.
 
Limit 
+ 
ability, access, choice, growth, unemployment, use 
100.