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Now listen to the following recording and answer questions 16 to 19.
16
A.The Nile River.
B.The Amazon River.
C.The Mississippi River.
D.The Missouri River.
17
A.It's the cradle of civilization.
B.There are various kinds of birds.
C.There is plenty of species.
D.There are different species of fish.
18
A.300 pounds.
B.350 pounds.
C.400 pounds.
D.500 pounds.
19
A.The treetop world.
B.The dense forest.
C.The immense vegetation.
D.The harpy eagle.
