We need a more capable leader, with strong will as well as good humour. A who B.that C.one D.which
--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.
The reason__________ their failure you know is they didn't get fully prepared for the experiment.