A． our exploration of London was a memorable gift to both of us
B． we were unwilling to tear ourselves away from London
C． our unpleasant feeling about London disappeared
D． we parted with each other in London
A． call each other regularly
B． have similar personalities
C． enjoy writing to each other
D． dream of meeting each other
A． seek professional help
B． be left alone
C． stay with her best friend
D． break the silence
A． Unforgettable Experiences
B． Remarkable Imagination
C． Lifelong Friendship
D． Noble Companions