Chia động từ ở hiện tại hoàn thành hoặc quá khứ hoàn thành: We went to the box office at lunch-time, but they ____(already/ sell) all the tickets. It isn't raining now. It ___(stop) at last

1. We went to the box office at lunch-time, but they ____(already/ sell) all the tickets.
2. It isn't raining now. It ___(stop)  at last. 
3. It'll soon get warm here. I___(turn) the heating on.
4. It was twenty to six. Most of the shops ___(just/close).
5. Karen didn't want to come to the cinema with us because she___(alrealy/see) the film