С. правильно разложить слова, то есть составить предложения a) the, system, begins, digestive, mouth, the, with. b) function, to remove, major, the, of, urinary, the, system, urine, is. c) is, the, system, of, complex, one, the, nervous, most, systems, all, of, body, human. d) lymph, are, blood, and, the, tissues, body, of, liquid, the. e) includes, muscles, the, and, muskuloskeletal, the, system, bones, joints.

A) the, digestive system, begins, with the, mouth.
b) the major, function, of, the urinary system, is, to remove, urine.
c)  the, nervous system, is one, of  the, , most,, complex, of all, human body,  systems, .
d) , blood, and, lymph are the liquid,  tissues, of,  the.body,
e) the,  muskuloskeletal,  system, includes, the,, bones, muscles and, joints.

a)  The digestive system begins with the mouth
b) The major function of the urinary system is to remove urine  
c) The nervous system is one of the most complex of all human body systems.
d) blood and lymph are the liquid  tissues of  the body
e) The musculoskeletal system includes bones, muscles and joints.

We all love weekends, but not all of them are good. Recently I’ve had the worst weekend in my life. As usually I was hoping to spend great time with my family, my friends and my dog, but everything went wrong at that terrible weekend. The morning of Saturday started from an alarming incident. My beloved pet got sick. We had to take Gina to the vet instantly as she was having some breathing problems. As we later found out it was connected with her poor heart. The vet gave her special injection and she got a bit better. When we returned we were quite shocked to see that a part of our flat was flooded. Our neighbors from upstairs forgot to turn off the tap water and the result was terrible. Not only their bathroom but ours too was full of water. So, we spent half of the day cleaning the mess. Apart from water on the floor, there were some problems with the ceiling and walls which quickly became damp. It goes without saying that I had to cancel my meeting with friends. That weekend we were going to visit the cinema and spend some time ice-skating. Alas, these opportunities were lost. Now I had to wait for the next weekend to see them. My school days are usually rather busy and full of other activities. I thought things couldn’t get worse, but in the evening we got an urgent call from my grandma saying that she wasn’t feeling well. So, we didn’t have any supper and drove to her place as quickly as we could. My mum called the doctor and we stayed with her almost till midnight. I’m glad she finally felt better, but I missed my favourite sitcom. Sunday wasn’t fun either, as I spent the whole day cleaning up my room and doing my homework.

People first tamed animals a very long time ago. It was a necessity - they needed to have meat, milk, fur at hand. It was easier to have animals near than to go hunting in dangerous conditions. Then people tamed the next group of animals - to protect the useful animals from the wild. And suddenly humans realized that it was fun to have a home animal. Thus first pets took their place in the homes of our ancestors. Nowadays people can choose a wide range of different pets - cats, dogs, mice, hamsters, snakes, lizards, birds. The most popular are cats and dogs. But I think it is easier to have a caged pet. For example, chinchillas. Because modern people spend most of the time at work, in my opinion it is cruel towards dogs or cats who might feel lonely. But if I speak of myself I would choose a dog, because it is a loyal and kind creation and I like long walks where my dog would be a companion.