1.Julia's father, who is over 80, has just come back from a skiing holiday
2.The problems faced by the company, which I’ll look at in detail in a moment, are being resolved
3.She was greatly influenced by her father, who/ whom she adored
4.Parents whose children are between four and six are being asked to take part in the survey.
5.He isn't looking forward to the time when he will have to leave
6.the Roman coins, which a local farmer came across in a field, are now on display in the National Museum.
7.He pointed to the stairs which/that led down to the cellar
8.These drugs, which are used to treat stomatch ulcers, have been withdraw from sale
9.The singer, who was recovering from flu, had to cancel her concert
10.The minister talked about the plans for tax reform that/ which/ - he will reveal next month
11.We went to the Riverside Restaurant where I once had lunch with Henry
12.My aunt, whose first job was filling shelves in a supermarket, is now a manager of a department store