摘要： I wear clean (slippers, shoes, heels) to school every day. Grammar (C) Fill in the blanks with 'a' or 'an'. 16. apple 17. pear 18. dress 19. elephant 20. radio 21. owl 22. bottle 23. island 24. tree 25. axe 26. onion 27. bed 28. umbrella 29. watermelon 30. ruler 31. computer (D) Rearrange the words to form correct sentences and end each sentence with a full-stop or with a question mark.

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