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)
（1）The prices of many usually go up during festivals．(flower)
（2）This is the time for our school to hold the robot-making contest．(six)
（3）I could hardly believe she had made a video about water pollution by ．(her)
（4）The company hopes its new product will be on the European market．(success)
（5）Larry has put on too much weight because of his diet．(healthy)
（6）Jack finds it difficult to pronounce some English words ．(correct)
（7）Don't use the lift when you escape from a high during a fire．(builD.
（8）It is not wise of young people to their jobs from time to time．(changeable)
