问题
选择题
Those overseas students volunteer 10 hours each week in Paris ______ free food and accommodation. [ ]
A. in search of
B. in contact with
C. in case of
D. in exchange for
答案
答案：D
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Those overseas students volunteer 10 hours each week in Paris ______ free food and accommodation. [ ]
A. in search of
B. in contact with
C. in case of
D. in exchange for
答案：D