1. he knows africa well because he (travel) a lot there. a has been travelling b has travelled 2. you (write) this composition for two hours and can't complete it. a have been writing b have written 3. – john is still repairing his car. – he must be tired. he (repair) it all day. a has repaired b has been repairing 4. alice promised to come, but she's absent. something (happen) to her. a has been happening b has happened 5. the children are drawing. they (draw) since they came home. a have been drawing b have drawn 6. they (tell) anything about their summer plans? a have they been telling b have they told 7. my aunt (have) the big house in the country. a has always been having b has always had
2. A have been writing
3. B has been repairing
4. B has happened
5. A have been drawing
6. B Have they told
7. B has always had