______ has recently been done to provide more buses for the people , a shortage of public vehicles remains a serious problem .
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.
The lawyer was expected to _____ some proposals after reading all those documents.
_____ his knowledge of the mountainous country, John Smith was appointed as our guide.
Political parties often differ in their views on various _____ concerning their own countries.