1.Jane and Sally went to the summmer Palace last week .
Jane and Sally didn't go to thesummmer Palace last week .
Did Jane and Sally go to thesummmer Palace last week ?
Yes, they did.
2.I bought a red for my mother .
I didn't buy a red for my mother
Did you buy a red for your mother?
Yes, I did
此题red 后面应该少了个词，不过不影响，直接加上去就可以了。
3.Wehad a good time last Sunday
We didn't have a good time last Sunday
Did you have a good time last Sunday?
Yes, we did.________________________
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