I. Complete the sentences with the words given.
device
convenient
book
REVISION
ENGLISH 10
inventor
economical processor generous
communication
1. My dad offered to buy me a new laptop, which was very
2. We have a very
3. There were displays of new
4. Marconi was the
of him.
air-conditioning system, and we don't pay much money.
in the exhibition halls.
of the radio.
5. Satellites are used to develop global
6. The iPad is a mobile computing
educational
inventions
not a computer.
your train tickets in advance.
>
7. It is cheaper if you
8. The school offers a wide range of
9. This is a safe and
way to dispose of chemicals.
10. With suitable software you can use your computer as a word
II Fill in each blank
and sporting activities.