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I: Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Trả lời câu hỏi dưới đây:Smoke, dirt and noise are all kinds of __________ .  

I:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to

Câu hỏi

Nhận biết

I:

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Trả lời câu hỏi dưới đây:

Smoke, dirt and noise are all kinds of __________ .  


A.
preservation
B.
conservation
C.
erosion  
D.
pollution  
Đáp án đúng: D

Lời giải của Luyện Tập 365

Đáp án là D. kinds of pollution: những loại gây ô nhiễm.

Các từ còn lại: preservation = conservation: sự bảo tồn; erosion: xói mòn

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