问题描述：
Where Pam on his winter vacation last year?He to his uncle's house A.Does go goes
B.Did go went C.Did went go D.Does go went 回答者请说出原因,
在where和Pam之间，Pam和on之间，He和to之间填
B.Did go went C.Did went go D.Does go went 回答者请说出原因,
在where和Pam之间，Pam和on之间，He和to之间填
问题解答：
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