是要看这个到底是怎么个用法
追答我举得应该用Relaxing。
The teacher keep us relaxed.
The teacher notified us to keep relaxing.
Keeping doing 坚持做某事， 后面接-ing时，主语应该是动作的执行者。
而后面接-ed时，则有被动的意思。换个词语想一下。
I'll keep you informed.
在这个句子中，You是被动的，inform的施动者是我。你体会一下是这个道理吗？
下面是keep的用法。
1. 保留；保守
I keep old letters. 我保存旧信。
I'll keep the original copy of your report on file. 我会把你报告的原件归档的。
2. 保持；继续
We will keep on trying and, if we get anything done, will notify you.
我们将继续努力，有结果将通知你。
Leaders shouldn't keep themselves aloof from the masses.领导人决不应该脱离群众。
Keep calm!安静!
You shouldn't keep chopping and changing like this; you'd better make up your mind right now!
"你不能再这样变化无常了,最好现在就拿定主意!"
3 遵守
He keeps to his promise.他守约。
"Everyone should keep discipline, and you, officers are no exception.""每个人都应该遵守纪律,你们军官也不例外。"
4 保卫；保护
Keep the baby warm. 别把婴儿冻着。
（常与from连用）防止；抑制
Keep one's temper。抑制住不发脾气。
Keep a curb on your anger.请抑制住怒气。
5 扣留；留下
Please keep me a place in the queue.请在队里给我留个位置。
6 赡养；饲养
to keep a dog养狗
Farmers usually keep chickens in their backyard.农民们通常在自己的后院养鸡。
7 .经营；经销；管理
to keep a shop开商店
to keep house治家
8. （常与from连用）远离；不接触
Keep away from the scene of the accident. 勿靠近事故现场。
But the stone walls keep the farmer's cows from joining his neighbor's cows.
但是石头墙使这家农民的母牛不会加入到邻居的牛群中去。
9. 庆祝；纪念
to keep Christmas庆祝圣诞节
10. 防卫；防守
to keep a town against the enemy 守城御敌
The police are keeping / standing guard over the house.
警察正派人守护着这幢房子。
11. 保密；不说
You are keeping something from me. 你对我保密。
no ，relaxing 表示事物本身是放松的，而主语是人，原句是the teacher informed us to keep_____(relax 单词正确形式） 很纠结，各种说法都有