Home work 6.1

1.erect(v)(a)
  build, construct

2.ruin(v)(n)
  destroy, mess up

3.restore(v)
  renew,  revive

4.modify(v)
  alter, vary

5.discriminate(v)
  discern, distinguish


Today`s reference
http://www.testden.com/challenge/free-toefl.asp