Question

3. Перевести слова и выделить суффиксы и префиксы:
communication - communicate - communicative
information – informate – informative
national – nationality – international
frequent – frequency –
exchange – change – changeable
user – use – useful
subscribe - , subscriber - prescribe
automatical – automatically – automatic

4. Подберите антонимы к данным словам:
Changeable, frequent, quick, automatic, convenient, approximate.

5. Вставьте в предложения необходимые по смыслу слова:
Inventors, communication, messages, a radiotelephone, a technology, an Email, electrical.
1) Telex is a modern electronic form of which allows you to transfer information quickly and conveniently from one source to another.
2) Fax is always on line. In the absence of people, it can get more than 100 .
3) The advantages of an : easy - remembered addresses, the opportunity of sending a simple letter and a formatted letter, high reliability of receiving a message.
4) The telegraph and telephone are both wire-based systems.
5) E-mail is of getting and receiving information by computer net.
6) Fax can be installed anywhere, even in the car, if it is equipped with a .
7) In the 1870s, two Elisha Gray and Alexander Graham Bell both independently designed devices that could transmit speech electrically (the telephone).

6. Выпишите из словаря все возможные слова с приставкой tele-. Например, telephone.