1.I'm too lazy to do my homework.
2.It's too heavy to move.
3.It's too early to get up.
4.It's too old to recognize.
1.I will stop carrying out the plan if you go away.
2.We will stop playing if it rains.
3.Let's stop laughing at him.
4.You should stop talking in the class.
1.It's so heavy that I can't move it.
2.It's so bad that I don't want to talk about it any more.
3.I'm so tired that I don't want to do anything else.
4.It rained so heavily that we couldn't go back home.