谁能帮我找一下这几个英语句子中的错误,

问题描述:

谁能帮我找一下这几个英语句子中的错误,
(1)All of us felt happily at her birthday party.
(2)All the food were on the table.
(3)What a delicious food it is!
(4)What did these people thought of their vacations?
先说一句谢谢了!

我是英语老师,帮帮你.
1)All of us felt happy at her birthday party.
(2)All the food was on the table.
(3)What delicious food it is!
(4)What did these people think of their vacations?