根据下列装置回答问题。（1）甲图中集气瓶底部放少量水的目的_______。（2）乙图中观察到_______，说明二氧化碳具有不能燃烧、_______的性质。
My grandma is interested in taking （photo） with her mobile phone．
Mum，have you finished （cook）？Is there anything I can do for you？
The seat is hard and （comfortable） to sit on，so I have a sore back．
The math problem isn't difficult，and I can work it out （easy）．
The （five） talent show gave us a big surprise．
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