1.In the course of a day students do far more than just ________ classes.
A) attend
B) attended
C) to attend
D) attending
2.The French pianist who had been praised very highly ________ to be a great disappointment.
A) turned up
B) turned in
C) turned out
D) turned down
3.Many difficulties have ________ as a result of the change over to a new type of fuel.
A) risen
B) arisen
C) raised
D) arrived
4.He made such a ________ contribution to the university that they are naming one of the new buildings after him.
A) genuine
B) minimum
C) modest
D) generous

1. A2. C 3. B 4. D