TASK DEFINITION: In this task, you are given an impractical statement. You are also given three reasons (associated with "A", "B", "C") explaining why this statement doesn't make sense. You must choose the most corresponding reason explaining why this statement doesn't make sense.
PROBLEM: Swimming is something anyone can do.
(A) Swimming can be really good exercise.
(B)Not everyone knows how to swim.
(C)Swimming is something you need water for.

SOLUTION: B

PROBLEM: Food eat her a lot.
(A) Food and her are big.
(B)She cooked a lot of food.
(C)Food does not eat people.

SOLUTION: C

PROBLEM: Dog still try to catch his  toothbrush.
(A) A dog does not use  toothbrush.
(B)Toothbrush are usually made with plastic dog usually have hair.
(C)Toothbrush cannot eat a dog.

SOLUTION:
A