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?