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Robots would do most of their work so that 
they could have more time to relax.
Life on Mars would be interesting as well as 
challenging.
circle
risk
electronic
agreement
agree
possibility
possible
stranger
strange
the first man to go into outer space
the smell of the pills
remind them of the tasty food on the Earth
be away from 
be different from
carry air tank on their backs
the programme called…
miss the first part of…
start with a discussion about a survey
some other students
be worth the risk
after all
make spelling mistakes
answer listening questions correctly
keep an English diary
try not use the new grammar rules
float in the air
traffic with no air pollution
a guide to living on Mars
They thought aliens were dangerous and 
would harm people.
We might get ill from living there.
Are scientists
 in agreement that living on Mars would be 
possible for humans in the future?
I'm not sure if it's worth the risk.
If we all go together, it should be fun.
Life on Mars is interesting, isn't it?
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