As dull as dishwater
Very uninteresting. The speaker at the conference was as dull as dishwater.
As crooked as a dog’s hind leg
Dishonest. The politician is as crooked as a dog's hind leg and nobody trusts him.
As common as an old shoe
Low class, badly mannered. The young woman is as common as an old shoe.
As comfortable as an old shoe
Very comfortable, very familiar. I felt as comfortable as an old shoe when I entered my aunt's house.
As clean as a hound’s tooth
Very clean. The classroom was as clean as a hound's tooth when the students finished cleaning it.
As a whole
Taken or considered all together. As a whole our boss is very good although some people do not like him.
As a rule
Usually, as a habit. As a rule, I get up at 7:00 every morning.
As a result of (something)
Because of something that has happened. As a result of a car accident my friend could not work for several months.
As a matter of fact
Actually, in fact. As a matter of fact, we have been to the art gallery many times.
Arise from
To originate from, to be caused by. Fires often arise from people not being careful.