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

Mr.Black is an experienced engineer，and he will be employed to __________ us in improving our equipment.[ ]

Would you like some ______ milk—Yes, but _______ a little.

Perhaps we should give up.—Nobody can ________ the change of situation. [ ]

The ship rocked violently from side to side, ______ many passengers to feel seasick [ ]