Question

仿照例句，將下列句子改為否定句和一般疑問句，并作肯定和否定回答。

例: I went to the park with my parents last Sunday.
     I didn't go to the park with my parents last Sunday.
     Did you go to the park with your parents last Sunday?
     Yes, I did. No, I didn't.
1. They did housework just now.
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2. I grew flowers last month.
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3. Tom rode horses the day before yesterday.
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Answer 1

1. They didn't do housework just now.
    Did they do housework just now?
    Yes, they did. No, they didn't.
2. I didn't grow flowers last month.
    Did you grow flowers last month?
    Yes, I did. No, I didn't.
3. Tom didn't ride horses the day before yesterday.
    Did Tom ride horses the day before yesterday?
    Yes, he did. No, he didn't.