—Did you see Mr Smith when you were in France?

—No. When I _______ France, he _______ to China.[ ]

A. had arrived in; had gone

B. arrived in; has been

C. got to; had gone

D. had got to; had been

深基坑施工止水桩失效引起的民宅裂缝事故的结论错误的是（）

A.4、6、8、9号民居是受到一定影响的建筑物。

B.5、7号民居是受到轻度影响的建筑物。

C.影响程度最严重的12号民居，应该进行一些结构补强工作，以保证安全。

D.以上都是错误的。