根据下列句子及所给单词的首字母，在答题卷上按题号写出各单词的完全形式（每空限填一词）。
小题1:If you can swim a the river, I’ll be waiting for you on the other side.
小题2:She took part in helping people in the Wenchuan Earthquake. She would never forget this unusual .
小题3:I like c with my friends online very much.
小题4:In Lily’s paper there are f mistakes than in Jack’s.
小题5:I read my essay a in class and everyone can hear me clearly.
小题6:His speech was boring, but he did not r it.
小题7:He is good at thinking. I think he can answer the question in a d way.
小题8:Would you mind not w your time?
小题9:Don’t stay up late, or you will feel s in class during the day.
小题10:He joined the army(军队) five years ago, so he has been a s for five years.
中，影响βj确定的风险因素有（）。