$ C{{O}_{2}} $ không cháy và không duy trì sự cháy nhiều chất nên được dùng để dập tắt các đám cháy. Tuy nhiên, $ C{{O}_{2}} $ không được dùng để dập tắt đám cháy nào dưới đây?
A.Đám cháy do magie hoặc nhôm.
B.Đám cháy liên quan đến thị bị điện.
C.Đám cháy do xăng, dầu.
D.Đám cháy do khí ga.

Choose the word whose underlined part differs from the other three in pronunciation in the following question.
A.see
B.sun
C.class
D.surely

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
He asked me if there had been any spaceships launched ______.
A.two years ahead
B.two years before
C.two years ago
D.two last years

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The man told his friend that he saw a UFO ______.
A.the next day
B.tomorrow
C.the day before
D.the last day

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
She asked me _______ had been the first person to step on the moon.
A.what
B.if
C.who
D.how

Trong phòng thí nghiệm $ C{ O _ 2 } $ được điều chế bằng cách:
A.nhiệt phân $ Ca{{\left( HC{ O _ 3 } \right)}_ 2 } $
B.nung $ CaC{ O _ 3 } $
C.cho C tác dụng $ { O _ 2 } $
D.cho $ CaC{ O _ 3 } $ tác dụng HCl

Choose the word whose underlined part differs from the other three in pronunciation in the following question.
A.shopping
B.spring
C.school
D.celebrate

Choose the word whose underlined part differs from the other three in pronunciation in the following question.
A.should
B.she
C.wish
D.small

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
He asked me _____ there were people living on Venus.
A.when
B.how
C.where
D.if

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A.second
B.smile
C.shine
D.summer