This is the easiest exercise in this book. -
I'm your best soldier! -
It is one of the biggest zoos in the world. -
Friendship is the most valuable thing in the world. -
It was the oldest book in the world -
He's one of the wealthiest men in the south. -
Honesty's the best policy. -
It was the simplest thing in the world. -
It was the largest building in the village. -
She was the funniest person in the world. -
The most important thing is respect. -
I was the youngest guy in the office. -
The most important problem is security. -
It's your most important tool. -
I am the worst father. -
Your first visit will be the most important. -
This is the most powerful place in this region. -
It's the biggest challenge of your life. -
It's the hardest thing in the world. -
It is the tallest tree in the world. -