根据句子意思，用括号中所给汉语提示或英语单词的适当形式填空。在答题卡标有题号的横线上，写出空缺处所填单词的正确形式。（每空一词）
小题1:It’s quite necessary to keep away from the        (pollute) rivers.
小题2:I found many pieces of paper were        (spread) on the floor when I entered the classroom.
小题3:      (what) he says, I won’t believe him.
小题4:Tomorrow I will be the        (proud) of our school.
小题5:He felt       (true) sorry that he hadn’t helped the old man up who fell down in the street.
小题6:You will be late for the meeting        (除非)you take a taxi.
小题7:Making our city more and more beautiful is every         (公民) duty.
小题8:There are many old        (家具)for  into several times. (break)
小题9:He spent 20 yuan       (租用) a bicycle to ride around Yangzhou.
小题10:A lot of       (人造的)satellites have been launched into space recently. .