Плиз мне надо 4а 4б 4с
Плиз
Плиз
Плиз

4A- Why chocolate is good for you
4B- cocoa-какао
       bitter- горький
       minerals- минералы
       chemicals- хим. вещества
       concentrate- сосредотачиваться 
4C- 1.dark chocolate is best for me   
       2.because chocolate helps people to think and to concentrate.
       3.because it tastes good and because it has the right chemicals.