单选题 All they have done is good for us all. We should understand them.

单选题 A new theory is in his latest book.

单选题 As I know, there is car in this neighborhood.

单选题 Although they are twins, they have nothing in .

单选题 A police officer claimed that he had attempted to paying his fare.

单选题 A pair of spectacles what I need at the moment.

单选题 A large number of people present at the meeting yesterday afternoon.

单选题 A sudden noise of fire-engine made him to the door.