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

Exhibit 
+ 
behaviour,  characteristic,  degree,  level,  pattern,  property,  range,  sign, 
symptom, tendency, variety, work
 
69.
 
Expand 
+ 
activity, base, business, capacity, horizon, operation, range, scope
 
70.
 
Exploit 
+ 
advantage, loophole, market, opportunity, position, possibility, potential, 
power, situation, technology, weakness
 
71.
 
Explore 
+ 
area, detail, idea, issue, nature, opportunity, option, possibility, potential, 
relationship, world
 
72.
 
Express 
+ 
anger, appreciation, belief, concern, disappointment, doubt, emotion, fear, 
gratitude,  interest,  opinion,  preference,  regret,  satisfaction,  support, 
sympathy, thanks, thought, view, wish