按要求做题
1. photo(复数)_____________ 2. run(过去式)_____________
3.fast(反义词)_______________ 4. tall(反义词)_______________
5. exercise(过去式)__________ 6. thin(反义词)______________
7.cm(全称)_______________ 8. kg(全称)__________
9. come(过去式)_____________ 10. lighter(反义词)_____________
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