80. A. couldn’t 81. A. public 83. A. taking up 84. A. Variations
B. shouldn’t B. mental B. limiting B. giving up B. Problems
C. mustn’t C. physical
D. wouldn’t D. normal D. retaining D. laying down D. Examples D. in favor
82. A. increasing C. determining C. holding down C. Samples
85. A. in common
B. in diversity C. in conclusion
Part V. Writing (15 points)
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