спасибо большое очень надо

19. Поставьте глагол в Present Perfect Continuous.

1. James is in his room, he (to play) there since the morning. 2. For 3 hours now we (to chat) about it and we haven’t come to any decision yet. 3. Jane, do you know where my hat is? I (to look) for it for half an hour and I can’t find it. 4. Your cousinr (to dance) with that red-haired girl since she came into the room. 5. He (to try) to solve this problem for several months now but he hasn’t found a solution yet. 6. He (to teach) at school for twenty years. 7. Mr. Smith (to work) in his room since early morning. 8. The children (to sleep) for 5 hours.

James is in his room, he has been playing there since the morning. 2. For 3 hours now we have been chating about it and we haven’t come to any decision yet. 3. Jane, do you know where my hat is? I have been looking for it for half an hour and I can’t find it. 4. Your cousinr has been dancing with that red-haired girl since she came into the room. 5. He has been trying to solve this problem for several months now but he hasn’t found a solution yet. 6. He has been teaching at school for twenty years. 7. Mr. Smith has been working in his room since early morning. 8. The children have been sleeping for 5 hours.