______has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.
What the doctors really doubt is _____my mother will recover from the serious disease soon.
_____we’ll go camping tomorrow depends on the weather.
Does _______ matter if he can't finish the job on time?
I hate _____when people talk with their mouths full.
It worried her a bit ______her hair was turning grey.