We ________ our lives had it not been for the policeman.

A. would have lost                                        B. should lose     

C. might lose                                                D. had lost

We __________ our lives had it not been for the policeman.

A. would have lost     B. should lose       C. might lose        D. could have lost

We __________ our lives had it not been for the policeman.

A. would have lost     B. should lose       C. might lose        D. could have lost

We ___ our lives had it not been for the policeman.

A. would have lost        B. should lose            C. might lose                D. could have lost

We ___ our lives had it not been for the policeman.
A. would have lost B. should lose 　　 C. might lose 　　　 D. could have lost