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news report 2[音频]

A. To carry out a scientific survey.
B. To establish a new research station.
C. To rescue two sick American workers.
D. To deliver urgent medical supplies.

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news report 2

A. The darkness and cold.
B. The heavy snow and fog.
C. The biting winds.
D. The ice all around.

fill in the blanks with the right choice.

Fill in the blanks with the right choice

Add proper suffixesto these words and form new words.please choose the best answer.