A.over-graze
B.occursC. contributes toD. mining activities
C.
D.

A.with
B.wereC. whenD. started
C.
D.

A.was
B.playC. makingD. pictures
C.
D.

A.What I told her
B.wereC. toD. most of
C.
D.

A.importance
B.economyC. educatedD. the whole country
C.
D.

A.
B.
C.
D.

A.culture
B.politeness
C.avoid
D.embarrassment

A.All of
B.undoubtedly
C.among
D.friendly

A.that
B.effect
C.for
D.development

A.is
B.of
C.the
D.have