По 4 предложения . 4 отрицательных и 4 вопросительных,в past simpl.

+1.My friend was at the party yesterday.
-.My friend wasn;t at the party yesterday.
?Was My 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 was buzy yesterday.
?Was My friend buzy yesterday?
4.+His sister was at you college the day before yesterday.
-His sister wasn't at you college the day before yesterday.
Was his sister at you 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 phone 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 our 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?