At the doctor
Good health is better than the best medicine. If your health is good, you are always in a good mood. You have a sound mind in a solid body, as an Old Latin saying goes. The English proverb "Sickness in the body brings sickness to the mind, expresses the similar idea, but from the different point of view. The profession of a doctor is one of the most noble, respected and needed in the worlds, as we turn to a doctor for advise at the hardest moments of our life, when we fall ill or suffer from pain or some disorder in our body and soul. We complain of low medical treatment, poor equipment of hospitals, difficulties in getting this or that medicine and so on. What a pity we start to value our health only when it is necessary to take medicine. Taking medicine is an unpleasant thing of course, and if we want to avoid it, we should go in for sport and keeps ourselves fit. Physical exercises to my mind are necessary. Physically inactive people catch cold more often than those who do plenty of exercises.
Do you love him? Present simple
Have you ( or have you got ) brothers or sisters? Present Simple
Who cooks dinner tonight а здесь допустимо и Present Simple, и Present Continiuos, англ язык, к сожалению, богат на такие двойственности Who is cooking dinner tonight?
Does he send you an e-mail every day? Проверьте свой текст если send, то так, как я указала выше. Если sent, то Did he send you an e-mail every day? На 4 предложении настаиваю на варианте Who is cooking dinner tonight?