问题
选择题
The little boy didn't know _______. [ ]
A. Which hat is his
B. which hat his is
C. which hat was his
D. which hat his was
答案
答案：C
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The little boy didn't know _______. [ ]
A. Which hat is his
B. which hat his is
C. which hat was his
D. which hat his was
答案：C