—Robert is indeed a wise man.—Oh, yes. How I have regretted ____ __his advice?
—May I smoke here?—Choose a seat in the smoking section, if you ________.
---Would you like to go out for a walk?---- .
As a result of the serious flood,two-thirds of the buildings in the areas .
All of the children ______ in the school play and they are in high spirits.
______ no bus, we had to walk home.