o-called football fan doesn’t evenknow the main difference between the two football teams, _____ surprises all ofthe people at present

－What does your father do, lily －He is _________. His job is to make sure that drivers obey the traffic rules.

The research on the new flu virus vaccine ischallenging and demanding Who do you think can do the job —_______ my students have a try

_____ he realized it was too late to return home.

______ hungry I am, I never seem to be able to finish off this loaf of bread.