http://www.bbc.co.uk/news/business-33353360
Vocabulary
1.collude= to act together, often in secret, to achieve an illegal or improper purpose
2.mergers = The joining together of two or more firms to form a single company.
3.overhaul= To examine or go over carefully for needed repairs.
4.stemmed = having a stem or stems or having a stem as specified; often used in combination
5.conspire = To plan together secretly to commit an illegal or wrongful act or accomplish a legal purpose through illegal action.
6.assess =To determine the value, significance, or extent of; appraise.
7.revise = To alter or edit (a text)
Expressions
1.investigated over
2.carrying capacity
3.the number of…
4.a number of…
5.revised up
