Question

改为否定句 1.The magazines were there a moment ago.

2.close your eyes .
3.he walks to school every morning.
4.he go to parties every spring festival.
5.jim sees some public signs in the park.
急急急急急，哪位好心人告诉我，我祝他（她）永远合家欢乐，万事如意！！！

Answer 1

第一句，在be动词后加not，为The magazines were not there a moment ago.
第二句，祈使句，在句首直接加Don’t。为Don't close your eyes
第三句，需借助助动词do来否定，应是第三人称单数，所以用does not，为He doesn't walk to school every morning.
第四句，同上，借助助动词。为He doesn't go to parties every spring festival. 其实这个句子本身有点错误。he为第三人称单数，但是go却是用原型。楼主打错了吧？
第五句，同理，Jim doesn't see any public signs in the park.

希望能帮到你。

Answer 2

The magazines were not there a moment ago.
Don't close your eyes .
he doesn't walk to school every morning.
he doesn't go to parties every spring festival.
jim doesn't see any public sign in the park.我来帮他解答

Answer 3

don't cloce your eyes