1 Dick doesn t remember when huc mother came home yesterday
2 len isn t sure how old her cousins are now
3 Fred can t say where his sisters are
4 Saly doesn t know who sent her money last week
5 i can t tell you where my parents will be next week
6 Sam doesn t know where Buc. Palace is situated
7 mary can t say how many ravens live in the Tower of London
8 i don t know whose money it is
9 they can t say why she is here every day