问题描述：
1.They make even _____ longest travel enjoyable.
A.a B an C the D \
2.You can travel ____ one day to place.
A in B at C on D of
3.You can see the country you are traveling ______.
A out B in C on D though
A.a B an C the D \
2.You can travel ____ one day to place.
A in B at C on D of
3.You can see the country you are traveling ______.
A out B in C on D though
问题解答：
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