When the clock ________ 11, I was about to leave for the supermarket.
With the change of the economic foundation the entire immense superstructure is _____ rapidly transformed.
His landlady gave him a week's _____ to leave the flat.
Some people either _____ avoid questions of right and wrong or remain neutral about them.
If he refuses to _____ my plan, I can probably find someone more cooperative.
The noise was so _____ that only those with excellent hearing were aware of it.