Odpowiedź:
1.They didn't build the house in 1987. Did they build the house in 1987?
2.He didn't give me his book last Sunday. Did he give me his book last Sunday?
3.The shoes didn't cost 20 pounds. Did they shoes cost 20 pounds?
4.Kate didn't do her homework yesterday. Did Kate does her homework yesterday?
5.The match didn't begin at 5 p.m. sharp. Did the match begin at 5 p.m. sharp?
6.People didn't see a new big comet in the sky. Did the people see a new big comet in the sky?