题干
The windows and doors come from old buildings around her town that _______.
A：pull down
B：were pulled down
C：pulled down
D：was pulled down
答案(点此获取答案解析）
B
The windows and doors come from old buildings around her town that _______.
A：pull down
B：were pulled down
C：pulled down
D：was pulled down
奥巴马对中国进行国事访问，双方就各自关切和共同关心的现实与长远问题交换意见，并达成了重要共识。这说明