There is no doubt _________ technological advance enables people to live more comfortably and happily.
--I didn't know this was a one-way street, officer. ------_________
--Which play shall we go and see?----_______________.
You _________think you're clever, but that doesn't give you the right to order me about!
--Jack's won _____________ holiday in London. --_________ lucky fellow!
____________ great help; I could get rid of all the difficulty and succeeded.