根据句意，用括号中所给单词的正确形式填空，每空一词。

小题1:Many fans felt sad because of the     (lose) of the famous Korean actor.

小题2:Lucy often plays tennis to relax     (she) after school.

小题3:Thanks to these     (science) work, our dream has become true.

小题4:The patient has difficulty     (run) on his own feet.

小题5:We tried to stop the fights, but we knew it was     (hope).

反映医院床位周转速度快慢的指标是（）。

A.床位周转间隔

B.术前平均占用病床日

C.床位周转次数实际

D.平均占用病床日