Choose the right word.6)Jack is the (worse/worst) runner and Boris is

Choose the right word.
6)Jack is the (worse/worst) runner and Boris is the (better/best).
7)My trip to Suzdal was (more/the most) pleasant of all.
8)High Street is (narrower/the narrowest) in the city.
9)Little Billy is (weaker/the weakest) than his brother.
10)Ann is the (happier/happiest) of all her friends.
Помогите пожалуйста, зарание спасибо громадное)))!