When we climbed up to the top of the mountain, we were all __________ ,but we were very happy. 
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A
out of sight
B
out of reach
C
out of breath
D
out of danger
推荐题目
 At a rough estimate, our school is ______ their school.
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A
three times as the size as
B
three times size of
C
three times the size of
D
three times as the size of
climb
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A
hour
B
laboratory
C
bomb
D
bitter