1.A hen on my farm 　　　　(lay) a green egg yesterday. 2.Last year, the light-coloured cars 　　　　(sell)

用所给单词的适当形式填空
1.A hen on my farm 　　　　(lay) a green egg yesterday. 
2.Last year, the light-coloured cars 　　　　(sell) better than the dark-coloured ones. 
3.Mum, I 　　　　(finish) practising the piano. May I go to play football now? 
4.Sadly, the old man 　　　　　(die) for 3 days. 
5.Tim is a manager now, but he once 　　　　(serve) as an engineer for five years. 

答案.1.laid　2.sold　3.have finished　4.has been dead　5.served