A. pollute B. provide C. catch
A. a; the B. the; an C. a; a D. the; the
A. put on B. put out C. put away D. put off
A. so B. but C. or D. because
A. 1980s; eight years old
B. 1980s; eight-year-old
C. the 1980s; eight-year-old
D. the 1980s; eight-years-old
A. duty B. courage
C. experience D. interest
A. used to, is used to B. used to , used to
C. is used to, used to D. is used to, is used to
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