Choose the best answer A, B, C or D to complete the sentences

TEST 18
I. Choose the best answer A, B, C or D to complete the sentences.
1. Air
A. pollute
2. If I were you, I
A. would
3. The Maori in New Zealand greet each other by
A. touching
3. Many people believe that robots have made workers jobless
A. so
together with littering, is causing many problems in our cities today.
C. polluting
do something to prevent him from littering.
B. pollution
D. polluted
B. did
C. will
D. do
their noses.
B. punching
C. blowing
D. rubbing
that is not necessarily true.
C. but
to communicate, which is not possible for human beings.
B. and
D. or
4. People from other planets may use
A. landlines
5. Teenagers often use abbreviations when
A. texting
6. People who cannot hear or speak often communicate using
A. pictures
7. The
A. developments
8. Alexander Graham Bell was a great
A. developer
9. We can see many international programs
A. in
B. letters
C. chat rooms
D. telepathy
B. video conferencing C. sending letters
D. talking
B. sounds
C. codes
D. signs
in technology allow astronomers to know more about outer space.
D. discovery
C. exploration
who invented the telephone.
C. scientist
B. science
D. explorer
B. conservationist
different channels.
С. at
D. of
В. on