Поставьте предложения в Present Perfect Simple.
Первые 3 в отрицательное , а вторые 3 в выпросительное
а)
1)We have already bought this dictionary.
2)He has already had lunch.
3)They have already seen this documentary.
b)
1)We have already done shopping
2)He has already finished his work
3)The cat has already drunk thge milk

а)1)We haven't bought this dictionary yet2)He hasn't  had lunch yet.3)They haven't  seen this documentary.b)1)have you done shopping?2 has he  finished his work?3)has the cat  drunk the milk?