1:now teenagers like to go to the fast food restaurants,( )eating doesn't take much time.
a.which b.where c.there d.that
2:the factory ( )the students visits last week is the one ( )I have worked for three years.
a.that;which b.where:in which c:/:where d.which;that
3:he talks as if he ( )all the work himself ,but in fact jim and mary did most of it.
a.does b.did c.had done d.has done