题目内容
1. Where does the ___________ (雨) come from? It comes from the ___________ (云).2. Where does the ___________ (水蒸气) come from? It comes from the ___________ (水) in the ___________ (小河).3. First, we have the ___________ (种子). 4. What are you going to do ___________ (今天下午)? I'm going to ___________ (种植) flower seeds in our ___________ (花园).5. It's ___________ (简单的). Put the seeds in the ___________ (土).