Сделать отрицательные предложения 1) i can cook a cake. 2) she in an engineer. 3) they enjoy swimming. 4)they were at the sea last summer. 5) he has written a letter today. 6) they bought a present yesterday. 7) mother cleans the house every day. 8) ben will call you tomorrow. 9) we are playing now. 10) they danced at the party yesterday.

1) I can't cook a cake
2) She isn't an engineer
3) They aren't enjoy swimming
4) They weren't at the sea last summer
5) He hasn't written a letter today
6) They didn't buy a present yesterday
7) Mother doesn't clean the house every day
8) Ben won't call you tomorrow
9) We aren't playing now
10) They didn't dance at the party yesterday