---- You don’t go to that supermarket quite often, do you?  ---- No, I only go there ______ because it’s too far away from my house.

— You keep on coughing. What's the matter?  — Oh， I've got a cold. Nothing serious， ____. 

When you cross the street, you can never be _______ careful.

Last night Mr. Crook didn’t come back at the usual time. ______，he met some friends and stayed out until midnight.

The bad thing about up is there’s always a _____