---Susan, go and join your sister cleaning the yard. --- Why ___? John is sitting there doing nothing. 

.--- I think this accident happened for many reasons. --- Richard is partly to blame, __________way you look at it.

Do you have________ to say about your study?

Charlie Chaplin found __________ difficult to entertain the audience at first.

Some people would rather ride bikes as bike ridding has_________ of the trouble of taking buses.