问题
选择题
It's __________ great fun to talk with you because I think it's _________ enjoyable experience. [ ]
A. a,/
B. the, a
C. / , an
D. a, an
答案
答案：C
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It's __________ great fun to talk with you because I think it's _________ enjoyable experience. [ ]
A. a,/
B. the, a
C. / , an
D. a, an
答案：C