（2014年安徽省合肥市高三第三次教学质量检测）29. Whenever we went to my uncle's house, we ______ play in the garden.

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

If you want to borrow a football after school, your student ____ here.

 —Is there a fog in the evening ?—There _____ be . I’ll make a phone call to find it out .

—You didn’t wait for Mr. Black last night, did you?  —No, but we ____. He didn’t return home at all.