1. 31 _____________ 2. 33 _____________

3. 37 _____________ 4. 48 _____________

5. 49 _____________ 6. 51 _____________

7. 52 _____________ 8. 54 _____________

【答案】1.thirty-one 2.thirty-three 3.thirty-seven 4.forty-eight 5.forty-nine 6.fifty-one 7.fifty-two 8.fifty-four

【解析】

略