—Have you ever corrected these compositions ?—Of course．They are based on true stories．Most of them are from personal _______．

---Is Sonia your_____?---Yes, she and I are in Class 4,Grade 7 at Blue School.

—Whose bike is this? —It must belong_____. I have seen him riding it.

__________ is (are) healthy food. 

 When we stayed at the country house, we had only enough water for drinking. That’s why we didn’t take a            for two days.