单词拼写：根据首字母或汉语提示写出相应单词的正确形式。（共10题，每题1分满分10分）
小题1:Some experts say high fever maybe a s_______of A H1N1.
小题2:For_________(显而易见的)reasons we had to cancel tonight’s performance.
小题3:He e_________ from prison this morning.
小题4:The hurricane_________(袭击) the southeast of England in October,2009.
小题5:The medicine had no _______(影响) on the patient.
