nếu tam giác abc đồng dạng với tam giác a'b'c' theo tỉ số 1/3 và tam giác a'b'c' đồng dạng với tam giác a''b''c'' theo tỉ số 2/5 thì tam giác abc đồng dạng với a''b''c'' theo tỉ số là bao nhiêu

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I. Supply the adverbs from these adjectives: Ex: careful -carefully 1. good ................................. 2. safe ................................. 3. bad ................................. 4. sudden ................................. 5. slow ................................. 6. careless ................................. 7. quick ................................. 8. recent ................................. 9. skillful ................................. 10. free ................................. 11. clear ................................. 12. strict ................................. II. Choose the best answer to complete the sentences. 1. I always feel ....................................before examinations. (nervous/ nervously) 2. He speaks English .................................... (fluent/ fluently) 3. It is an .................................... book. (interesting/ interestingly) 4. He drove .................................... and he had an accident (careless/ carelessly) 5. We didn’t go out because it was raining .................................... (heavy/heavily) 6. The football match was very .................................... I enjoyed it. (exciting/ excitingly) 7. She tried on the dress and it fitted her .................................... (good/ well) 8. He never has accidents because he always drives .................................... (careful/ carefully) 9. He behaved .................................... towards his children. (strict/ strictly) 10. It’s too dark to see .................................... (clear/ clearly