单选题 Had you come five minutes earlier, you______________the train to Birmingham. But now you missed it.

单选题 This kind of material expands______the temperature increasing.

单选题 As the bus came around the corner, it ran______________a big tree by the roadside.

单选题 Professor smith promised to look______________ my paper, that is, to read it carefully before the defence.

单选题 People at the party worried about him because no one was aware______he had gone.

单选题 A sudden noise of a fire-engine made him______to the door.

单选题 Our house is about a mile from the railway station and there are not many houses______________ .

单选题 Never before______________see such a terrible car accident on the road.