You have failed two tests. You’d better start working harder, ____ you won’t pass the course.
A．and B．so
C．but D．or
Between the two generations, it is often not their age,____their education that causes misunderstanding.
A．like B．as
C．or D．but
I like Mr.Miner’s speech;it was clear and____the point.
A．at B．on
C．to D．of
I used to love that film ____ I was a child, but I don’t feel it that way any more.
A．once B．when
C．since D．although
At the railway station, the mother waved goodbye to her daughter until the train was _______.
A．out of sight B．out of reach
C．out of order D．out of place
At first he hated the new job but decided to give himself a few months to see___ it got any better.
A．when B．how
C．why D．if
