Put the sentences into the Past perfect.
4)Everyone read the book and then we discussed it in class.(before)
5)The girlput on her disguise and then walked into the room.(after)
6)The thief made his escape.the alarm bell rang.(alreadly,by the time)
70Judy switched on the video camera and then left the house.(alreay/when)

4) Everyone had read the book before we discussed it in class. (before)  

5) After the girl had put on her disguise, she walked into the room. (after)  

6) The thief had already made his escape, by the time the alarm bell rang. (already, by the time)  

7) Judy had already switched on the video camera when she left the house. (already/when)

Объяснение: