Răspuns la A, "+" inseamna ca sunt din aceeasi propozitie: has played, have finished, has been playing, has been thinking, have practised, has won, have been living, has surprised, have been working, has forgot + have been waiting + has not come.
Raspuns la B: have been waiting + hasn't come, has not seen + hasn't looked, has been, (have) you seen, have been coordinating, have been writing, haven't met, has launched, have tried, have heard, have visited + have never been.
