根据句意,用所给单词的适当形式填空。 小题1:We all know ______________ (pollute) water does harm to our health. 小题2:I have read five (twelve) of this book. 小题3:If you are in a blue mood, you can do your hobbies to cheer ( you) up, boys. 小题4:To tell you the (true), I felt sad while you were away. 小题5:The children heard the (frighten) shout and looked at each other in fear. |