Mark your answer on your answer sheet: A. They are very close to the chair lift. B. They are making snow. C. The people are skiing down the mountain. D. All of the skiers are wearing helme
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Mark your answer on your answer sheet:
They are very close to the chair lift.
They are making snow.
The people are skiing down the mountain.
All of the skiers are wearing helmets.
Giải thích
Chọn đáp án C