đụ má mày rồi biết

Để pha loãng H₂SO₄ đặc cách làm nào sau đây đúng?

A. cách 1.  

B. cách 2.    

C. cách 3.    

D. cách 1 và 2.

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

Emma is calling to Mrs. White’s home.

Emma: “Hello, may I speak to Mrs. White, please?”

Call receiver: “_______.”

A. Of course, not

B. Yes, please

C. Hold on, please

D. Wait here

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

It seems that the thief took _______ of the open window and got inside that way.

A. occasion

B. chance

C. opportunity

D. advantage