根据提示，把下列句子补充完整。
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).
试题答案
1. rain, clouds 2. vapour, water, river 3. seed 4. this afternoon, plant, garden 5. easy, soil