问题
选择题
The song was very popular _______.[ ]
A. in the 1990
B. in 1990s
C. in the 1990s
D. on 1990s
答案
答案：C
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The song was very popular _______.[ ]
A. in the 1990
B. in 1990s
C. in the 1990s
D. on 1990s
答案：C