Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked [A], (B), (C) and [D]. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
注意: 此部分试题请在答题卡2上作答。
Passage One 【題組】29. (A)The West Antarctic region was once an open ocean.
(B) The West Antarctic ice sheet was about 7,000 feet thick.
(C) The West Antarctic ice sheet was once floating ice.
(D)The West Antarctic region used to be warmer than today.
Passage Two