Mr Black has two sons, one of ________working as a doctor.
Her skirt had been so _____ in packing that she had to iron it before going out.
. 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.
. In my opinion, you can widen the _____ of these improvements through your active participation.