Thank you for giving me a hand. I ______ in the experiment without your valuable help. 

To tell the truth, if it were not for the fact that you______ my daughter, I would not take such pains to serve you.

Flowers suddenly burst out everywhere on the same day every spring, as if they       in tune with one another.

If you had got up early, you_____ the early bus.

After hours of repair,the driver tried to start the car but it _______ work.