正確答案是：
否定句：
We didn't taste oranges on the farm.
一般疑問句：
Did you taste oranges on the farm?
肯定回答：
Yes,we did
否定回答：
No,we didn't
不明白的再問喲,請及時采納,多謝!還有這句：Helen picked up the purse just now和We cooked delicious food last Sunday問題都和上面的一樣Helen didn't pick up the purse just nowDid Helen pick up the purse just now?Yes,she didNo, she didn'tWe didn't cook delicious food last SundayDid you cook delicious food last Sunday?Yes, we didNo , we didn't