Did you watch TV last night?
Yes, I did.
Did Phil play volleyball on Saturday?
No, he didn't.
Did Bob work hard yesterday?
Yes, he did.
Did they talk in class today?
No, they didn't.
Did Max and Jake do their homework?
Yes, they did.
Did Wendy drink any milk on Monday?
Yes, she did.
Did we buy the car last year?
No, we didn't.