Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.

Câu hỏi

The tiny pieces of black carbon ________ from indoor stoves can enter the human body and cause serious health problems.

Đáp án
C. released

Câu hỏi thuộc Bài tập:

UNIT 5: 45-MINUTE TEST - Tiếng Anh 11 Global Success