B- Maria and Thomas go to the pool. (Composite subject and verb do not coincide). C- Each of us will have to train. (not in agreement with the unspecified pronoun and verb). D- The company is in good tax health. (Collective name and verb disagree). A- I was by the river when I saw a coyote. (The subject contradicts the verb that it comes). E- Are your family and best friend coming to dinner? (Verbensensen disagrees)..