II. Find which word or phrases does not belong to each group.
6. A. water B. coal C. gas D. oil
7. A. wind B. wave C. sun D. coal
8. A. limited B. unlimited C. plentiful D. abundant
9. A. hydropower B. panels C. cells D. solar
10. A. unreasonable B. overpriced C. expensive D. costly
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Sinh Học lớp 12
