Complete the sentences with the given words in their proper forms（用括号中所给单词的适当形式完成下列句子。每空格限填一词）
【小题1】All the citizens of Troy made jokes about their ______.  (enemy)
【小题2】Daming began to learn cormorant fishing in his ______.  (twenty)
【小题3】Online shopping, if done properly, can save ______ a lot of time and energy.  (we)
【小题4】After trying for several times, he ______ in getting rid of all the mice in his room.  (success)
【小题5】Unluckily, few young people are interested in learning ______ Chinese skills.  (tradition)
【小题6】Go ______ ahead, and you will see the cinema on your left.  (straight)
【小题7】To ______ be tea, the leaves must come from tea plants.  (true)
【小题8】The local government made rules to prevent ______ traders(商人) from cheating.  (honest)