Exercise 1
1. T
2. NT
3.NT
4.NT
5. NT
6.T
7.T
8.T
9.NT
10. T

Exercise 2
1. GT
2 NGT
3. GT
4.NGT
5. GT
6.NGT
7.GT
8.NGT
9.GT
10. NGT

Exercise 3

2.
4.Thirst is harder to endure than hunger, hunger can be endured by eating a meal, rather than thirst being quenches by a cup of water.
6.Jogging can add years to one's life, this is why exercise is so important in our lives.
8.The way people shake hands can reveal something about their characters, which is important to be professional to make a first good impression.
10.In Moby Dick, Melville did an amazing job at making it one of the most strangest and wonderful books in the world.