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Ⅲ. Key structures. 关键句型。
A) Underline the sentences with the past perfect tense in the passage.
画出课文中含有过去完成时的句子。
B) Give the correct form of the verbs in parentheses. Do not refer to the passage until you finish your exercise. 用括号中动词的正确形式填空，完成练习后再对照课文，核对你的答案。
1. Before I could join the others outside to see what was going on, the first plane
2. But by the time I got to the airport, my plane to New Zealand
3. The next morning, I heard about the earthquake in New Zealand the day before. My bad luck
A) Underline the sentences with the past perfect tense in the passage.
画出课文中含有过去完成时的句子。
B) Give the correct form of the verbs in parentheses. Do not refer to the passage until you finish your exercise. 用括号中动词的正确形式填空，完成练习后再对照课文，核对你的答案。
1. Before I could join the others outside to see what was going on, the first plane
had
already hit
(hit) my office building.2. But by the time I got to the airport, my plane to New Zealand
had
already taken
(take) off.3. The next morning, I heard about the earthquake in New Zealand the day before. My bad luck
had
unexpectedly turned
(turn) into a good thing.答案
B) 1. had, hit 2. had, taken 3. had, turned
