根据下列各句句意和空白之后的汉语提示词，在写出对应单词的正确、完整形式，每空只写一词。
小题1:Window screens are ___________(有效的) in keeping out mosquitoes.
小题2:An old man in _____________(寒酸的) clothes came to the door.
小题3:The other possibility, Mr. Jouanny said, was that the _________(小偷) might just like the painting.
小题4:Will it be ______________(方便的) for you to start work tomorrow?
小题5:All of them are______________(教授) of chemistry at Chicago University.
小题6:This is the most important___________(改革)of the police service in over 50 years.
小题7:Just now the police came and __________(逮捕) the man who had robbed the bank.
小题8:The bell____________(表示) the end of the period rang, interrupting our heated discussion.
小题9:We are going to ________________(删除) some names from the list.
小题10:The object of this society is to perfect its members ___________(实际地) and scientifically.
小题1:effective
小题2:shabby
小题3:thief / thieves
小题4:convenient
小题5:professors
小题6:reform
小题7:arrested
小题8:indicating
小题9:delete
小题10:practically
小题1:effective 根据所给中文，且用其形容词，所以直接选填 effective
小题2:shabby 根据所给中文，且用其形容词，所以直接填shabby
小题3:thief / thieves 根据所给中文，用thief，原文没有提到单复数，所以都可以
小题4:convenient 根据所给中文，且主语为it，只有convenient
小题5:professors 根据中文，且前为are,所有用其复数形式
小题6:reform 根据中文，直接选填reform
小题7:arrested 根据所给中文，再加上前面的came，所以用过去式：arrested
小题8:indicating 根据所给中文，选用indicate，本句已有谓语动词rang,所以需要用非谓语动词，铃声表示结束，是主动发出，所以用Ving形式
小题9:delete 根据中文，且不定式后用动词原形，所以直接填delete
小题10:practically 根据中文意思且其后的scientifically，所以用副词形式