What have these people been doing? Make sentences using an appropriate verb in the present perfect continuous, as in the example. 1. Richard started studying for tomorrow's exam four hours ago. He is still studying. ...Richard has been studying for four hours... 2. Sandra began painting the picture a month ago. She hasn't finished it yet. 3. Tom went to the airport at 8:00. It is now 10:00 and he is still waiting for his flight. 4. James and Amy went outside to play with their friends an hour ago. They haven't Come home yet. 5. The Moores set off for their trip at 7:00 It is 11:00 and they are still travelling. 6. Roger started playing the trumpet two hours ago. He is still playing it. ​re necessary, and put the verbs in brackets into the correct form.