问题 填空题
写出下列动词的过去式和过去分词。
1. do    _____ _____
2. go    _____ _____
3. put   _____ _____
4. lock  _____ _____
5. clean  _____ _____
6. water _____ _____
7. feed   _____ _____                                    
8. pack   _____ _____
答案

1. did, done

2. went, gone

3. put, put

4. locked, locked

   5. cleaned, cleaned

6. watered, watered

7. fed, fed

8. packed, packed

选择题
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