第1个回答 2012-01-03
1. He has three sisters, one of whom is a doctor.
2. He lives in the house , the window of which (或 whose window) is very big.
3.Do you still remember the day when we joined the club?
4.This is the room where (或 in which) we stayed.
5. This is the driver who has worked with my brother and me for ten years.
第2个回答 2011-12-31
1.He has three elder sisters, one of whom is a doctor.
2.He lives in a house, of which the windows are very big.
3.Do you still remember the day on which you joined our club?
4.This is the room in which we have lived.
5.This is the driver with whom my young brother and I have been working for ten years.