Составьте предложения в Present Perfect со словами 1) professional 2) violent 3) sold out​

1) Density is measured in kilograms per cubic meter.

2) Most materials have a higher density than water and sink in water.

3) The density of the material is very important, especially in aviation.

4) Young's modulus is the ratio of the applied force to the elastic deformation of a given material.

5) The more rigid the metal, the less it deforms under load.

6) when the metal is stretched, it first flows, that is, it is plastically deformed.

7) Lead, copper, aluminum and gold are the most malleable metals.

8) Creep resistance is a very important property of materials used in aircraft engines.

Объяснение:

The annual carnival in Rio-de-Janeiro is a bright festival. People dance, play music and sing. Everyone is happy and full of joy. Paraders wear colourful costumes. Some of them are really exotic and extravagant. The weather is usually fine and warm, so people don't need to put on lots of clothes. There are so many activities the celebraters can do on those days, from dancing to playing sport to tasting delicious traditional food. If you visit the carnival you will be overwhelmed with your feelings of excitement.