Vinasat-1 is Viet Nam's first telecommunication _______, which was launched in 2008.
satellite
5
Experiencing microgravity on a _________ is part of astronaut training programmes.
parabolic flight
10
In 2015 NASA discovered an Earth-like planet which might be _________ because it has ‘just the right' conditions to support liquid water and possibly even life.
habitable
15
On the ISS astronauts have to _______ themselves so they don't float around.
attach
20
It is cheaper to build an unmanned ______ than the one that is manned.
spacecraft
20
One of the largest ________ found on Earth is the Hoba from southwest Africa, which weighs about 54,000 kg.
meteorites
25
Mai had past a swimming test before she _______ an astronaut. (become)
became
5
Before her birthday party last week, Alice _______ (hang) up a lot of balloons.
had hung
10
A visit to the ISS will be a life-changing experience whose/when/ X you'll never forget.
X
15
Have you talked to the student which/who/X has won this year's karate championship? He's over there.
who
15
Have you heard of Kepler-186f? It's a planet which/ who/X is similar in size to Earth.
which
10
‘The Martian? That's exactly the film whose/ when/X I've been reading about!' Phuc said.
X
15
Could we meet in the café who/when/where we saw each other last time?
where
20
Becoming an astronaut is one profession who/X/that needs a lot of training.
