The Browns _____ here, but not any more
A. were used to living
B. used to live
C. had been living
D. had lived
隧道工程的主体结构物流通常()。
A. 洞内行车道路
B. 洞身预支护与衬砌
C. 洞身衬砌和洞门构造物
D. 防排水构造物
That was__________ a careless mistake caused by the operator.
A. apparent
B. apparently
C. appear
D. appearance
在海上,仅看到来船的一盏绿灯,则来船为_____。
A. 在航帆船
B. 在舤中的机帆并用船
C. 搁浅船
D. L>8米的机动船