【正文】
ing. They ____ on the desk now. A. are are B. were are C. are were 四. 用 be動(dòng)詞的正確形式填空。 Unit 4 Keeping Clean 一. 根據(jù)句意和首字母提示寫單詞,完成句子。 1. in the park____________________ 2. 撿起 ____________________ 3. over there ____________________ 4. 今天早上 ____________________ 5. play outside ____________________ 6. 晴天 ____________________ on ____________________