Space

A person who travels in space

A system of millions or billions of stars.

The number of _______ in the Earth*s orbit at the moment is estimated to be 2271.

This new rocket is a ________ which can carry fifteen astronauts.

If I had enough money, I ______ a telescope.

I ________ more if I had more time.

If I pass my exams, my parents ______ happy.

If the computer gets too hot, _______ it off.

If I hadn*t studied engineering, I _______ become interested in space travel.

I would have come and found you, If I ________ you were at the party.

The clothest ______ to Earth is Venus , which is over forty billions kilometres away.

four billion eight hundred and seventy-two thousand three