1. Let's go somewhere else,...? l know a new place with very good food

1. let's go somewhere else,...? i know a new place with very good food.
A. shall we     
B. don't we
C. will you
D. won't you
2. john , as well as his two best, friend rarely helped anyone in the class,...?
A. did he
b. didn't he
c. did they
d. didn't they