问题
选择题
Oh, this is really a big shop. Do you know when it _______?
A. built
B. was built
C. has built
D. has been built
答案
答案：B
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Oh, this is really a big shop. Do you know when it _______?
A. built
B. was built
C. has built
D. has been built
答案：B
，下列说法正确的是
g