1)Choose the superlative form of the adjective:

1.
more expensive
the most expensive

2.
the most beautiful
the more beautiful

3.
the more complicated
the most complicated

2)
Choose the comparative form of the adjectives:

1.
the most important
more important

2.
more popular
the more popular

3.
the more interesting
more interesting

1)

1. The most expensive

2. The most beautiful

3. The most complicated

2)

1. More important

2. More popular

3. More interesting