英语比较麻烦!Fill in the blanks with who,whom,whose,which and that

英语比较麻烦!
Fill in the blanks with who,whom,whose,which and that
1. The man ____ I saw told me to wait.
2.The man to _____ I spoke was a foreigner.
3.I know a boy ______ father is an acrobat.(杂技演员)
4.He saw a house _____ windows were all broken
5.All the apples ____ fall are eaten by wild boars.
6.Can you think of anyone ____ could look after him?
7.This is the best hotel ____ I know.
8.He showed a machine _____ parts are too small to be seen.