A
1 Have you spoken to our teacher today?
2 I have already made coffee.
3 We didn't meet him last week.
4 Mark and Bob haven't done their homework yet.
5 Did you go to the Zoo yesterday?
6 Jack had dinner 2 hours ago.
B
Has he just helped him?
C
1 He has never skied.
2 I have just eaten ice cream.
3 You haven't written the letter yet.
4 Have you already come home?