Поставьте предложение в Present Perfect:
1. They leave to school.
2. We watch the film.
3. I hear this song.
4. Mary studies English.

In the capital Center, on a picturesque hill over the Moskva River, the unique ensemble of the Kremlin rises created by talent and work of many generations. We find the first mention of Moscow in documents of 1147, however excavation in the Kremlin shows that here already there were settlements in the second half of the first millennium B.C. At prince Ivan Kalita in 1339-1340 new walls were built from powerful oak trunks. And already at Dmitry Donskom when Muscovites prepared for resolute fight against Tatars, walls and towers of the Kremlin were laid out from a white stone situated near Moscow. “A reigning hail” called Moscow at Ivan III when it in the second half of the XV century became the capital of the incorporated Russian state. The biggest construction of the Kremlin belongs to this time.

Almost everyone is society has a job to do. Having work is important as it gives certain social status, pays salary and maintains self-esteem. Job can be rather rewarding. However, many people nowadays are leading hectic lifestyles. They work too much and have little breaks. This inevitably leads to stress. We often hear the word “stress” in everyday life, although it is not clear what it really is. “Stress” means pressure and tension. It is a common problem in modern life. Unfortunately, too much stress results into physical, emotional and mental health problems. The reasons for stress are numerous. It’s not only overworking or having no time for rest. Stress factors also include dangerous situations, difficulties at home, divorce, loss of close friends, etc. Changes for the better can also cause stress. For example, getting married, having a baby, moving houses, entering a university. Of course, everything depends on the way a person reacts. Experts advise not to worry too much and stay calm in any situation. It is very important to try to avoid stress or at least to minimize it. When noticed on early stages, it can be fixed easier. One of the best ways to fight stress is to keep a sense of humor in difficult situations. Even doctors agree that laughter is the best medicine for all diseases. Other ways to cope with stress include regular leisure activities and interesting hobbies. If someone feels depressed, a good solution is taking up yoga classes or swimming, bicycling, knitting, gardening, painting, etc. Anything, that can help a person to relax and get a new lease on life, is considered to be helpful.