Kim loại nào sau đây tan tốt trong nước dư ở điều kiện thường?
A.Be.
B.Na.
C.Al.
D.Mg.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
_________ is a device sent up into space to travel around the earth used for collecting information or communicating by radio, television, etc.
A.Spaceship
B.Telescope
C.Satellite
D.Antenna

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
What is this device used ……….?
A.at
B.in
C.to
D.for

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________ a piece of rock or other matter from space that has landed on Earth.
A.Star
B.Stone
C.Meteorite
D.Galaxy

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____________ is one of the large, independent groups of stars in the universe.
A.Moon
B.Galaxy
C.Earth
D.Space station

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The purpose of the Ig Nobel Prize is to celebrate the unusual and ………. achievements.
A.imagine
B.imaginatively
C.imagination
D.imaginative

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In Vietnam, agriculture is the main ………. activity.
A.economically
B.economic
C.economy
D.economical

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Over the years, I have always wondered how life would be ………. the technological inventions of today.
A.except
B.without
C.excluding
D.unless

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
If you use your laptop ………., it will be your best friend.
A.wisdom
B.wise
C.wiser
D.wisely

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
I _____ my assignment on modern technology yet. I am still working on it.
A.don’t finish
B.hasn’t finished
C.didn’t finish
D.haven't finished