— What did he think of the trip to Beiji
问题:
— What did he think of the trip to Beijing last month?
— He had such a good time ________ he visited the Great Wall.
A.until
B.that
C.where
D.when
— What did he think of the trip to Beijing last month?
— He had such a good time ________ he visited the Great Wall.
A.until
B.that
C.where
D.when