eat的過去式和過去分詞是什么意思

　　例句：

　　Do you eat sweets, cakes or sugary snacks?

　　你吃糖果、糕點或甜點心嗎？

　　He refused for reasons of conscience to eat meat.

　　他為了良心好過而拒絕了吃肉。

　　My wife and I discovered some superb places to eat.

　　我妻子和我發現了一些很棒的吃飯的地方。

　　Freda heated up a pie for me but I couldn't eat it.

　　弗雷達為我熱了一塊餡餅，可我不能吃。