Traveling is , but we often feel when we are back from travels.
A. interesting; tired
B. interested; tiring
C. interested; tiring
D. interested, tired
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(答案→)A. interesting; tired
B. interested; tiring
C. interested; tiring
D. interested, tired
解析：形容词辨析。interesting 、tiring 修饰物，interested 、tired 修饰人，根据语境第一空需要修饰物的形容词第二空需要修饰人的形容词答案为A。 旅游很有意思但是旅游过后我们常感到累。