The graduate insisted that he _______ to the West to teach the children there and that what he chose ______ right even though his parents didn’t want him to go.
--- ______ was it ______ they discovered the entrance to the underground palace? --- Totally by chance.
--- Some people believe that robots will take over the world one day. --- What if that is the ______?
______, Jack couldn’t get the door open. He had to dial 110.
I think that he must be looking up the information in the library, ______?
I hope she gives up her job ______ it makes her crazy.