A.polluted
B.corrupted
C.defiled
D.purified

A.in spite of
B.although
C.despite
D.because

A.disadvantages
B.impairments
C.obstacles
D.adversities

A.nice British white
B.British nice white
C.nice white British
D.white British nice

A.head
B.shoulder
C.nose
D.mount

A.on
B.by
C.at
D.in

A.the tired
B.the more tired
C.the most tired
D.the tireder

A.are providing
B.provided
C.provide
D.are provided

A.potential
B.potentiality
C.potentially
D.potention

A.ran out of
B.got out of
C.put out of
D.made out of