My bedroom is smaller than yours.
My bedroom is 【not as big as 】yours.
There are over 1,000 students in our school.
There are 【more than 】1,000 students in our school.
There are 6boys and 6 girls in our group.
Our group【includes】6 boys and 6 girls .
There is some water in the bottle.
There 【is no】 water in the bottle.