+ 1. My friend was at the party yesterday.
- My friend wasn't at the party yesterday.
? Was your friend at the party yesterday?
2. +My friend went to the country by car.
- My friend didn't go to the country by car.
? Did your friend go to the country by car?
3. +My friend was buzy yesterday.
- My friend wasn't buzy yesterday.
? Was your friend buzy yesterday?
4. +His sister was at college the day before yesterday.
- His sister wasn't at college the day before yesterday.
Was his sister at college the day before yesterday?
5.+ Our parents were in the country last Sunday.
- Our parents weren't in the country last Sunday.
? Were your parents in the country last Sunday?
6.+ I phoned my friends yesterday.
- I didn't phone my friends yesterday.
? Did you phone your friends yesterday?
7.+ They worked at the hospital.
- They didn't work at the hospital.
? Did they work at the hospital?
8.+ Last Sunday our parents stayed at home.
- Last Sunday our parents didn't stay at home.
? Did your parents stay at home last Sunday?
9.+ My friend phoned me at 9o'clock yesterday.
- My friend didn't phone me at 9o'clock yesterday.
? Did my friend phone me at 9o'clock yesterday?
A:Is Alexander Sergeevich Pushkin an Englishman?
B: No, he is russian writer.
A: Is coffee an German drink?
B:No, coffee was found in Africa