1, The photograph isn't as big as the painting.
2, Films aren't usually as long as plays.
3, My painting isn't as expensive as this painting.
4, The film we saw last week isn't as interesting as this film.
5, This picture in our room isn't different from this picture.
6, This is the first time I have drunk this kind of water.
7, I haven't seen her for 3 weeks.