______ is a best-known secret in success that get ready in much of our life and you may make the most of the opportunity．

There's ______with my bike.I'm sorry I'm late.

Long years of hard work made _____ possible for him to enter a key university in Beijing.

— Would you get me a bar of chocolate from the kitchen, dear?—______one?                                        

To some life is pleasure, while to _____ it is suffering. But I don’t know what it is to me.