1.D
The earlier we arrive, the quicker we'll leave
2.G
The more expencive an hotel is, the better service is
3.E
The better you look the more confident you'll feel
4.H
The older Mark gets, the more he looks like his grandfather
5.A
The less tired you are, the harder it is to sleep
6.C
The more complicated the problem is the more difficult to find a solution
7.I
The more I know him, the much I trust him
8.B
The more you study, the easier the exams will be
9.F
The more he eats, the fatter he becomes