WHAT ARE SCIENTISTS TRYING TO DO

5. - BAI KIEM TRA 45 PHUT SO 1 HK II LOP 10
BAI KIEM TRA 45 PHUT SO 1 HK II LOP 10

5. What are scientists trying to do?

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Section III:

Grammar and Vocabulary

(2.5 ps.)

Question I. Choose one word whose underlined part is pronounced differently.

Identify your answer by circling the corresponding letter A, B, C or D.