câu1 comlete the sentences with the words or phrases in the box
galaxy/planet/flying saucer/ solar system/astrounaut/outer space/space buggy/weighless/aliens/traces
1A..........flying saucer is sometimes referred to as an Unidentified Flying Object (UFO)
2An .............astronaut is a person who is traineeeed for travelling in a spacecraft
3Researches made the amazing findings of ............traces ........... of water on Mars
4A.............space buggy is a vehicle used for driving on the moon
5Our..............solar system ...........is made up of the sun and all the objects that travel around it
6 Earth is the only known to be habitable to........... planet ...............life
7 Do you believe ............aliens ....................exist on other planets?
8 Spacecraft are vehicles used for travel in.........outer space
9Our ........ galaxy,the Milkyl,Way, consists or 100-400 billion stars
10.Astronauts on the orbiting space station are ...............weighless because they do not experience a force of gravity
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Sinh Học lớp 12
