根据句意，用括号中所给单词的正确形式填空，每空一词。
Many fans felt sad because of the     (lose) of the famous Korean actor.
Lucy often plays tennis to relax     (she) after school.
Thanks to these     (science) work, our dream has become true.
The patient has difficulty     (run) on his own feet.
We tried to stop the fights, but we knew it was     (hope).