Rewrite each sentence, beginning as shown so that the meaning stays the same

Câu 7. Rewrite each sentence,beginning as shown so that the meaning stays the same.
1.Nobody has used the old house in the village for a long time
The old house........
2.they have sent modern submarines to investigate the seabed
Modern submarines........ 
3.A lot of people suffer from techno stress.Those people work in my office
A lot of people...... 
4.John is absent from school .his mother's in hospital 
John,who........
5.Arlene Black never turned up.Guy invited her onto his chat show
Arlene Black ,whom......
6.We have bought a new car for our family
A new car .....