#1.
1. My salary isn't as high as yours.
2. You don't know about cars as much as I do.
3. I don't smoke as much as I used to.
4. I don't feel as much tired as I felt it yesterday.
5. They haven't lived here as long as we have.
6. I wasn't as much nervous before the interview as usually.
7. The weather isn't as bad as it was yesterday.
#2.
1. It isn't as cold today as it was yesterday.
2. The station wasn't as far as I thought.
3. I don't go out as frequently as I used to.
4. The hotel isn't as expensive as I expected.
5. There weren't as many people at this meeting as there were at the last one.
6. The examination wasn't as complicated as we expected.
#3.
1 Let's walk. It's just as quick as taking the bus.
2. I'm going to sleep on the floor. It's just as comfortable as sleeping in that bed.
3. Why did he get the job? I'm just as well-qualified as him.
4. I thought you were nice but you're just as quick as everybody else.
5. You won't find a cheaper restaurant than this. They'll all be just as expensive as this one.
#4.
1. Your hair is the same colour as mine.
2. I arrived here at the same time as you.
3. You have made the same mistake as I have.