A person who travels in space
astrounaut
astronomer
spacecraft
astroman
A person who travels in space
astrounaut
astronomer
spacecraft
astroman
A system of millions or billions of stars.
solar system
galaxy
satellite
orbit
The number of _______ in the Earth*s orbit at the moment is estimated to be 2271.
planets
telescopes
satellites
stars
This new rocket is a ________ which can carry fifteen astronauts.
planetarium
orbit
satellite
spacecraft
If I had enough money, I ______ a telescope.
will buy
buy
would buy
am buying
I ________ more if I had more time.
would travel
travel
will travel
travelled
If I pass my exams, my parents ______ happy.
would be
are
will be
be
If the computer gets too hot, _______ it off.
switch
will switch
would switch
switched
If I hadn*t studied engineering, I _______ become interested in space travel.
would not have
would not
had not
have not
I would have come and found you, If I ________ you were at the party.
had been known
knew
had known
would have
The clothest ______ to Earth is Venus , which is over forty billions kilometres away.
comet
planet
moon
satellite
four billion eight hundred and seventy-two thousand three
4 872 003
4 872 000 003
4 000 872 003
4 008 072 003
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