Find the word which has the underlined part pronounced differently from the others
A.hoping
B.congestion
C.population
D.production

Find the word which has the underlined part pronounced differently from the others
A.design
B.prestigious
C.citizen
D.discrimination

Find the word which has the underlined part pronounced differently from the others
A.high-paying
B.sanitation
C.mindset
D.rise

Find the word which has the underlined part pronounced differently from the others
A.population
B.post-office
C.slower
D.road

Sản phẩm của phản ứng nhiệt phân muối amoni clorua là
A.$ { N _ 2 },HCl $.
B.$ N{ H _ 3 },HCl $.
C.$ N{ H _ 3 },C{ l _ 2 } $.
D.$ { N _ 2 },C{ l _ 2 },{ H _ 2 }O $.

Muối amoni chứa gốc của axit không có tính oxi hóa khi đun nóng, bị phân hủy thành:
A. $ HN{ O _ 3 } $
B. $ { H _ 2 }O $
C. $ N{ H _ 3 } $
D. $ { N _ 2 } $ hoặc oxit của nitơ

Trong thực tế, để làm xốp bánh người ta sử dụng muối amoni nào sau đây?
A.$ N{ H _ 4 }HC{ O _ 3 } $.
B.$ {{(N{ H _ 4 })}_ 2 }C{ r _ 2 }{ O _ 7 } $.
C.$ {{\left( N{ H _ 4 } \right)}_ 2 }SO _ 4 $.
D.$ N{ H _ 4 }Cl $.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The only _______________ place in this place is the Ancient Town, so don’t forget to visit it when you are here.
A.history
B.historian
C.historical
D.long-lasting

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Singapore is the first on the list of most ________ cities in the Southeast Asia.
A.affordable
B.livable
C.populous
D.polluted

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Can you tell me the most ___________ district of Hanoi?
A.crowding
B.crowd
C.populated
D.populating