Fill in the gaps.Use where,who,which,whose,that,when.Put in commas where necessary
1. My friends went to Spain ____ it;s warm and sunny.2. My grandfather _____ sweater you are wearing was a very nice man.
3. His parents were doctors ____ worked in the hospital down the road.
4. She has seen something ____ scared her.
5. I've read a book ____ was very interesting