Writing B
1) We use mouse, keyboard, flash memory and so on. For example, we use keyboard to type something on computer.
2) Firstly, person gets addicted to them, so ending up with games will be hard to get away from them. Also, our vision gets bad. So, it is harmful for our life too
3) I use Internet for my studying, learning new things, and interesting facts. There is lots of useful information in the Internet, so I am using Internet and electronic devices, such as computer and phone for learning something new, that will broaden my horizons.
4) There are lots of advantages of the Internet. Such as, learning something, that you didn't know before; watching videos, that will help you with your lessons; reading news. All in all, Internet is a great platform for learning many new things.
5) Yes, they help me. Because, I use some videos from Internet to consolidate my subject knowledge, or check my knowledge by making tests. In the other hand, it also disturbs me from doing my lessons. Because, many notifications come to my phone, so they are disturbing me.
Удачи!
a) A group of engineers is designing a special car for the exhibition.
Present Continuous, Active Voice
b) New cars are usually tested in a special train.
Present Simple, Passive Voice
c) It was in the USA that the first sleeping car was invented.
Past Simple, Passive Voice
d) Both Russian and foreign engineers work at the design of more comfortable cars.
Present Simple, Active Voice
a) Группа инженеров проектирует специальный вагон для выставки.
b) Новые вагоны обычно тестируют / испытывают в специальном поезде.
c) Именно в США был изобретен первый спальный вагон.
d) Над созданием более комфортных вагонов работают как российские, так и иностранные инженеры.
Объяснение:
Active voice - активный залог
Passive voice - пассивный залог
To cross the river.