单项选择题

A．the Antarctic is not a suitable place for human beings to survive
B．people cannot explore the Pole area from air
C．the airplanes would one day replace dogs and sledges
D．dogs and sledges need no human care
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Directions: For this part, you are allowed 35 minutes to write a composition on the following questions. Your part of writing should be no less than 120 words. Do you find it difficult to say no to your friends How do you manage to keep your own time and space without causing embarrassment to others Write an essay on this topic and following the hints below: 1.Many of us find it hard to say NO to a friend. 2. Do not hesitate to say NO. 3. Skills of saying NO at the same time not hurting feelings.
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