18) She has prints her article yet.
19) We haven't seen her for a long time.
20) Grandmother and grandfather have already visited their grandchildren.
21) They are sitting in the living room now and talking about their trip.
22) Have you ever been in Africa?
23) He did everything for her. And now he is going to buy her a house.
24) The concert hasn't started yet and we sit in the hall and discuss our problems.
25) It's time to talk about everything.