Whose,where,why,when,who,which
1)The animals ... have entered the Red Books of Endangered Species must be under the protection of the world's organisations.
2)The woman .... is standing at the windown is my aunt .
3)The car park .... you left your car is not far from my office.
4)She didn't tell me ... books it was.I thought it was hers.
5)The day ..... they arrived at the seaside was warm and sunny.
6)Henry didn't explain ... he had decided to leave the college.
7)The boys ... are playing football over there are my classmates.
8)I really wanted to know ... your sister asked me to phone her.
9) She hasn't decided yet ... sweaters to buy.
10)Tony will ask them ... they are going to stay for holidays.