Вопрос по английскому языку:

Choose the correct one comparing and giving explanation.1 The most /most animals can communicate.2 dogs are the most/ most intelligent animals. 3 the most / most people like to keep pets at home 4the most /most dogs have an easy life in the USA .5 the Mercedes is the most/most expensive of the three cars.6 the most /most countries show great interest to our country .7 the school adminstration awards the most /most diligent students . 8 I think keeping pets is the most /most interesting hobby in most countries .